{"id":4909,"date":"2026-10-27T17:33:08","date_gmt":"2026-10-27T12:03:08","guid":{"rendered":"https:\/\/www.healthpoints.in\/?p=4909"},"modified":"2026-10-27T17:33:08","modified_gmt":"2026-10-27T12:03:08","slug":"what-is-yersinia-pestis-virus","status":"publish","type":"post","link":"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/","title":{"rendered":"Why has the Yersinia pestis virus come into discussion again after 5,000 years?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Abstract\" >Abstract:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#A_bacterium_that_changed_history\" >A bacterium that changed history<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#What_is_Yersinia_pestis_and_what_does_plague_mean\" >What is Yersinia pestis and what does plague mean?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#The_History_of_Yersinia_pestis\" >The History of Yersinia pestis:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Did_This_Disease_Exist_5000_Years_Ago\" >Did This Disease Exist 5,000 Years Ago?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#What_is_Yersinia_pestis_and_what_does_plague_mean-2\" >What is Yersinia pestis and what does plague mean?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Where_did_the_Plague_of_Justinian_spread\" >Where did the Plague of Justinian spread?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Where_did_the_Black_Death_begin\" >Where did the Black Death begin?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#How_did_the_disease_reach_Europe_by_1347\" >How did the disease reach Europe by 1347?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#How_many_people_died_in_the_Black_Death\" >How many people died in the Black Death?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#How_did_the_Black_Death_change_society_the_economy_and_peoples_outlook\" >How did the Black Death change society, the economy, and people\u2019s outlook?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#The_epidemic_did_not_stop_even_after_the_Black_Death_History_from_1353_to_1720\" >The epidemic did not stop even after the Black Death: History from 1353 to 1720<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Great_Plague_of_London_1665\" >Great Plague of London, 1665<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Great_Plague_of_Marseille_1720\" >Great Plague of Marseille, 1720<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Third_Plague_Pandemic_When_Death_Reached_from_China_to_India\" >Third Plague Pandemic: When Death Reached from China to India<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#History_of_Plague_in_India_From_1896_to_Millions_of_Deaths\" >History of Plague in India: From 1896 to Millions of Deaths<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#How_many_deaths_occurred_in_India_due_to_plague\" >How many deaths occurred in India due to plague?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Indias_1994_Surat_Plague_When_an_Old_Fear_Returned\" >India&#8217;s 1994 Surat Plague: When an Old Fear Returned<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Cases_also_reported_in_2002_and_2004\" >Cases also reported in 2002 and 2004<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Global_History_of_Yersinia_Pestis_Where_When_and_How_Many_People_Died\" >Global History of Yersinia Pestis: Where, When, and How Many People Died?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#The_Discovery_of_Yersinia_Pestis_in_1894_How_Did_Science_Change_the_Fight\" >The Discovery of Yersinia Pestis in 1894: How Did Science Change the Fight?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Plague_Is_Spread_By_How_does_this_disease_actually_spread\" >Plague Is Spread By: How does this disease actually spread?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#What_Is_the_Difference_Between_Yersinia_Pestis_and_Yersinia_Enterocolitica\" >What Is the Difference Between Yersinia Pestis and Yersinia Enterocolitica?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Is_Yersinia_Pestis_Still_Present_in_the_World_Today\" >Is Yersinia Pestis Still Present in the World Today?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#How_can_Plague_be_prevented\" >How can Plague be prevented?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Conclusion_Could_Yersinia_Pestis_Become_a_Major_Pandemic_Again\" >Conclusion: Could Yersinia Pestis Become a Major Pandemic Again?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.healthpoints.in\/hi\/what-is-yersinia-pestis-virus\/#Disclaimer\" >Disclaimer:<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Abstract\"><\/span>Abstract:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Wars, famines, and natural disasters have claimed millions of lives throughout human history. But there has also been a microorganism that has brought entire civilizations to the brink of crisis on several occasions. Its name is Yersinia pestis. It is a bacterium that causes plague, a deadly infectious disease.<\/p>\n<p>In the sixth century, this disease affected the Byzantine Empire. In the fourteenth century, as the Black Death, it wreaked havoc across large parts of Europe and Asia. Then, in the nineteenth century, its third global pandemic spread from China, reaching India and other parts of the world.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"A_bacterium_that_changed_history\"><\/span>A bacterium that changed history<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The history of plague in India has also been extremely tragic. According to historical data published by the Indian Institute of Management Ahmedabad, approximately 13.3 million deaths from plague were recorded in India between 1898 and 1968. Most of these deaths occurred in the early decades of the twentieth century.<\/p>\n<p>Now, the study of DNA obtained from ancient graves has revealed another astonishing fact. The history of Yersinia pestis goes back much further than medieval Europe. Researchers have found genetic evidence of it in human remains that are thousands of years old.<\/p>\n<p>But the question is not only how many lives this bacterium has claimed. The real questions are also where it remained hidden for so long, how it continued to spread, and why it has still not been completely eradicated despite modern medicine.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Yersinia_pestis_and_what_does_plague_mean\"><\/span>What is Yersinia pestis and what does plague mean?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The meaning of plague in Hindi is a serious infectious disease that spreads as plague or epidemic. However, the common English word plague can also be used for a major problem or calamity. In medical science, Plague is the name of a specific disease.<\/p>\n<p>This disease is caused by a gram-negative bacterium called Yersinia pestis. It is found mainly in small mammals, especially rodents, and in the fleas associated with them.<\/p>\n<p>The word pestis in its name is related to Latin, and is associated with epidemic or destructive disease. On the other hand, the name Yersinia was given in honor of the scientist Alexandre Yersin, who played an important role in identifying this bacterium in 1894.<\/p>\n<p>Once this bacterium enters the body, it can rapidly cause a severe infection. Some forms of it can spread to the blood and lungs, which greatly increases the risk of death if timely treatment is not received. According to the World Health Organization (WHO), plague can be treated if caught in time, but delays in treatment can be serious or life-threatening.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_History_of_Yersinia_pestis\"><\/span>The History of Yersinia pestis:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To understand the history of Yersinia pestis, we must go back even further than the civilizations whose written records are available today. In a genetic study published in 2015, researchers obtained bacterial DNA from the teeth of ancient human remains in Europe and Asia.<\/p>\n<p>Some of these remains were approximately 2,800 to 5,000 years old. This discovery indicated that the plague bacterium was infecting humans thousands of years before the major pandemics recorded in written history.<\/p>\n<p>However, Yersinia pestis from that period was not fully developed like the bacteria of today. Older strains lacked some of the genetic traits later found to be associated with Bubonic Plague spread through fleas..<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Did_This_Disease_Exist_5000_Years_Ago\"><\/span>Did This Disease Exist 5,000 Years Ago?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Another study published in 2026 reported genetic evidence of plague infections in communities around Siberia\u2019s Lake Baikal region dating back approximately 5,500 years. This means that the history of the bacterium\u2019s origins and its spread among human societies may be even more ancient than previously estimated.<\/p>\n<p>But it would not be accurate to consider these early infections vast pandemics like those of the Middle Ages. Archaeological evidence shows the disease was present, not the definite number of deaths at that time.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_Yersinia_pestis_and_what_does_plague_mean-2\"><\/span>What is Yersinia pestis and what does plague mean?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The meaning of plague in Hindi is a serious infectious disease that spreads as plague or epidemic. However, the common English word plague can also be used for a major problem or calamity. In medical science, Plague is the name of a specific disease.<\/p>\n<p>This disease is caused by a gram-negative bacterium called Yersinia pestis. It is found mainly in small mammals, especially rodents, and in the fleas associated with them.<\/p>\n<p>The word pestis in its name is related to Latin, and is associated with epidemic or destructive disease. On the other hand, the name Yersinia was given in honor of the scientist Alexandre Yersin, who played an important role in identifying this bacterium in 1894.<\/p>\n<p>Once this bacterium enters the body, it can rapidly cause a severe infection. Some forms of it can spread to the blood and lungs, which greatly increases the risk of death if timely treatment is not received.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Where_did_the_Plague_of_Justinian_spread\"><\/span>Where did the Plague of Justinian spread?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Its historical impact is recorded in Egypt, Constantinople, the eastern Mediterranean regions, Italy, North Africa, and parts of Western Europe. Many popular historical accounts estimate that 25 to 50 million people died in this pandemic. But modern historians disagree about such a high figure. No systematic counts of the total population or deaths were available at the time.<\/p>\n<p>Therefore, the actual death toll of the Plague of Justinian cannot be presented as a definite scientific fact. Modern DNA studies have helped establish that an ancient lineage of Yersinia pestis was involved in the first pandemic. Nevertheless, research into its origins, spread, and overall demographic impact is ongoing.<\/p>\n<p>Among the most devastating pandemics in history, the Black Death holds a prominent place. This pandemic, which spread in the fourteenth century, was not merely a health crisis. It profoundly affected Europe\u2019s population, labor system, trade, politics, and social life.<\/p>\n<p>The major European outbreak of Black Death occurred between 1347 and 1353, although evidence of its origins and spread is linked to Central Asian regions before this period.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Where_did_the_Black_Death_begin\"><\/span>Where did the Black Death begin?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For a long time, historians were not in agreement about where the Black Death originally began. However, a study published in the scientific journal Nature in 2022 presented important evidence. Researchers examined human remains from cemeteries near Lake Issyk-Kul in present-day Kyrgyzstan.<\/p>\n<p>Records associated with these graves indicate deaths from the plague in 1338 and 1339. Scientists found ancient DNA of Yersinia pestis in the remains and linked its genetic lineage to the later spread of the Black Death.<\/p>\n<p>This provided strong evidence in favor of Central Asia as an important region for the origin or early spread of the pandemic. However, the actual first location of the infection is still not known with certainty.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_did_the_disease_reach_Europe_by_1347\"><\/span>How did the disease reach Europe by 1347?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>During the fourteenth century, trade links between Central Asia, the Black Sea, and the Mediterranean were active. These links created opportunities for the infection to spread westward. In 1347, plague infection reached Mediterranean ports via maritime trade and ships arriving from the Black Sea region. It then began to spread through many Italian cities.<\/p>\n<p>By 1348, the outbreak had reached France, England, and other parts of Europe. Over the next few years, infections were also recorded in Scandinavia and parts of Eastern Europe. At this point in history, trade was not the only important factor.<\/p>\n<p>Crowded cities, poor living conditions, the ecology of rodents and fleas, and the absence of effective treatments at the time also made the disease\u2019s impact severe. However, scientists believe that transmission may not have occurred in exactly the same way everywhere.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_many_people_died_in_the_Black_Death\"><\/span>How many people died in the Black Death?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>It is important to understand one distinction here. There is no single undisputed figure for the worldwide death toll of the Black Death. Some historical estimates suggest approximately 25 to 50 million deaths in Europe. According to many studies, about 30 to 50 percent of Europe\u2019s population died, though this proportion may have been even higher in some regions.<\/p>\n<form data-gtm-form-interact-id=\"0\">\n<div class=\"divide-y divide-secondary-100 overflow-hidden rounded-lg border-0 border-secondary-100 bg-white shadow-md md:flex md:divide-x md:divide-y-0 md:overflow-visible md:border md:shadow-none rtl:divide-x-reverse\">\n<section class=\"relative flex-1 md:w-1\/2 md:pb-16 pb-16\">\n<div class=\"relative md:block block\">\n<div class=\"translate-result block h-auto min-h-[160px] w-full resize-none border-none p-5 text-lg focus:border-none focus:ring-0 md:min-h-[380px]\" dir=\"ltr\">\n<h2 class=\"prose prose-lg leading-7 text-black prose-p:m-0\"><span class=\"ez-toc-section\" id=\"How_did_the_Black_Death_change_society_the_economy_and_peoples_outlook\"><\/span>How did the Black Death change society, the economy, and people\u2019s outlook?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">The impact of the Black Death was not limited to the number of deaths. In agricultural societies, the deaths of large numbers of farmers and laborers led to a shortage of workers. Fields were left empty in many regions, production was affected, and changes began to take place in how land was used.<\/div>\n<div><\/div>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">As the number of workers declined, longstanding relationships concerning wages and working conditions began to change in some places. However, these changes were not uniform throughout Europe.<\/div>\n<div><\/div>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">During the epidemic, religious beliefs, social discrimination, and rumors also played an important role. Some communities were wrongly blamed for the disease and subjected to violence. On the other hand, the disease also influenced how people viewed death, the uncertainty of life, and the human body, as reflected in art and literature.<\/div>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">\nMany paintings and works depicted death as a force that made no distinction between rich and poor. The history of the Black Death reminds us that the impact of an epidemic is visible not only in hospitals, but also in the structure of society as a whole.<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"The_epidemic_did_not_stop_even_after_the_Black_Death_History_from_1353_to_1720\"><\/span>The epidemic did not stop even after the Black Death: History from 1353 to 1720<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>Even after the first devastating wave of the Black Death ended, Yersinia pestis did not disappear. Outbreaks of plague continued to appear in various parts of Europe over the next several centuries.<br \/>\nIn the sixteenth and seventeenth centuries, the infection kept spreading again in commercial cities and ports. A major example of this is the Great Plague of London in 1665.<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Great_Plague_of_London_1665\"><\/span>Great Plague of London, 1665<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>In 1665, London experienced a terrible outbreak of plague. A large part of the city\u2019s population fell ill, and it is estimated that about one hundred thousand people died. According to the London Museum, nearly one-fifth of London\u2019s population at the time died because of this disease.<\/div>\n<div><\/div>\n<div>To prevent the spread of infection, many houses were shut up. Trade was affected, and a large number of people left the city. During this period, the administration also kept weekly counts of deaths, known as the Bills of Mortality. However, these records did not fully document all communities and all deaths.<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Great_Plague_of_Marseille_1720\"><\/span>Great Plague of Marseille, 1720<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>In 1720, another major plague outbreak occurred in the French port city of Marseille. This epidemic is an important example in the history of infections linked to Mediterranean trade and maritime connections.<\/div>\n<div>\n<div class=\"relative md:block block\">\n<div class=\"translate-result block h-auto min-h-[160px] w-full resize-none border-none p-5 text-lg focus:border-none focus:ring-0 md:min-h-[380px]\" dir=\"ltr\">\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">\nIt affected Marseille and the surrounding Provence region. Historical accounts estimate approximately one hundred thousand deaths across the affected area, although uncertainty remains about the actual number. This outbreak heightened the importance of port surveillance, Quarantine, and infection control related to merchant ships in the history of public health in Europe.<\/div>\n<h3 class=\"prose prose-lg leading-7 text-black prose-p:m-0\"><span class=\"ez-toc-section\" id=\"Third_Plague_Pandemic_When_Death_Reached_from_China_to_India\"><\/span>Third Plague Pandemic: When Death Reached from China to India<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">During the nineteenth century, Yersinia pestis once again created a global health crisis. This time, the epidemic\u2019s early major centers were in the Yunnan region of southwestern China, where historical evidence of plague-like disease dates back to the eighteenth century.<\/div>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">\nThe spread of infection in this region increased during the 1850s. The disease then reached other areas through population movements and trade routes. In 1894, severe outbreaks emerged in Canton, now Guangzhou, in southern China, and in Hong Kong.<\/div>\n<div class=\"prose prose-lg leading-7 text-black prose-p:m-0\">\nThereafter, plague spread to many regions of Asia, Africa, Australia, Europe, and the Americas through maritime vessels, ports, and international trade links. Plague infections were recorded in India in 1896, Madagascar in 1898, Honolulu in 1899, and San Francisco in 1900.<\/div>\n<\/div>\n<\/div>\n<footer class=\"absolute inset-x-0 bottom-0 items-center justify-between rounded-br-lg bg-white p-4 md:flex md:px-5 md:py-3 flex\">\n<div><\/div>\n<div class=\"relative group\">This third pandemic is given special importance in modern global health history because it was during this period that scientists began to understand the bacterium that causes the disease and the process of its transmission.<\/div>\n<\/footer>\n<\/div>\n<\/form>\n<div class=\"grid grid-cols-1 gap-4 lg:grid-cols-2\">\n<div class=\"lg:col-start-2\">\n<div class=\"mt-4 w-full rounded-lg border border-primary-300 bg-primary-50 p-2 transition-all duration-200 hover:bg-primary-50\/80\">\n<div class=\"flex flex-col items-stretch gap-2 lg:flex-row lg:items-center lg:justify-between\">\n<h3><span class=\"ez-toc-section\" id=\"History_of_Plague_in_India_From_1896_to_Millions_of_Deaths\"><\/span>History of Plague in India: From 1896 to Millions of Deaths<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The most devastating outbreaks of plague in India occurred during British rule. In 1896, a major outbreak of plague emerged in Bombay, present-day Mumbai. At that time, the city was an important port for international trade.<\/p>\n<p>After the disease spread, fear began to grow among the people. The infection was not limited to Mumbai and, over the following decades, spread to many parts of India. Plague also affected large numbers of people in Maharashtra, Punjab, and other regions of British India.<\/p>\n<p>In cities, measures such as house searches, isolating infected people, and sanitation were carried out to control the disease. Some harsh colonial measures also created opposition and distrust among the public. The tragedy of that era was not limited to infection alone. Families were breaking apart, livelihoods were being affected, and many people were being forced to leave their homes.<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"How_many_deaths_occurred_in_India_due_to_plague\"><\/span>How many deaths occurred in India due to plague?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Historical data available from the Indian Institute of Management, Ahmedabad, records approximately 13.3 million plague deaths from 1898 to 1968. According to the Indian Institute of Management, Ahmedabad, these figures show how severe an impact the third pandemic had on the Indian subcontinent. However, India\u2019s story was not only about deaths. From this period onward, the development of new systems for infection control, laboratory testing, and public health also began.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Indias_1994_Surat_Plague_When_an_Old_Fear_Returned\"><\/span>India&#8217;s 1994 Surat Plague: When an Old Fear Returned<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>After nearly three decades without confirmed cases of human plague in India, an outbreak was recorded again in 1994. In August 1994, cases of Bubonic Plague were reported in Maharashtra\u2019s Beed district. Then, in September, suspected cases of Pneumonic Plague in Gujarat\u2019s Surat raised serious concerns.<\/p>\n<p>As news of the infection spread, large numbers of people left the city. Road and rail transport came under increased pressure, and trade and industry were affected. According to the historical account of the National Centre for Disease Control (NCDC), 876 cases and 54 deaths were recorded in the 1994 outbreak.<\/p>\n<p>However, reports at the time gave varying numbers of suspected, probable, and laboratory-confirmed cases. An October 1994 CDC report recorded 56 deaths. That is, when comparing these figures, it is important to understand their reporting date and Case Definition.The outbreak was controlled with the help of government action, medical treatment, identification of contacts, and surveillance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cases_also_reported_in_2002_and_2004\"><\/span>Cases also reported in 2002 and 2004<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>In 2002, an outbreak of Pneumonic Plague was recorded in the Hat Koti area of Shimla district, Himachal Pradesh. According to the WHO, there were 16 cases and four deaths there.<\/li>\n<li>Later, in 2004, a localized outbreak of Bubonic Plague was recorded in Uttarakhand, with eight cases and three deaths, according to the NCDC.<\/li>\n<li>These events made it clear that it would be unwise to consider the risk of plague in India eliminated, even though large-scale epidemics have now become rare.<\/li>\n<\/ul>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<h2><span class=\"ez-toc-section\" id=\"Global_History_of_Yersinia_Pestis_Where_When_and_How_Many_People_Died\"><\/span>Global History of Yersinia Pestis: Where, When, and How Many People Died?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>\n<div>\n<table>\n<tbody>\n<tr>\n<th>Year or Period<\/th>\n<th>Affected Region<\/th>\n<th>Historical Impact or Recorded Deaths<\/th>\n<\/tr>\n<tr>\n<td>Approximately 5,500 years ago<\/td>\n<td>Siberia<\/td>\n<td>Ancient DNA evidence indicates infection; total deaths unknown<\/td>\n<\/tr>\n<tr>\n<td>541\u2013750 CE<\/td>\n<td>Byzantine Empire, Mediterranean Region<\/td>\n<td>First historically recorded plague pandemic; death toll remains disputed<\/td>\n<\/tr>\n<tr>\n<td>1338\u20131339<\/td>\n<td>Present-day Kyrgyzstan<\/td>\n<td>Ancient DNA evidence confirms plague infection<\/td>\n<\/tr>\n<tr>\n<td>1346\u20131353<\/td>\n<td>Affected regions of Europe and Asia<\/td>\n<td>Black Death; estimated deaths in the tens of millions<\/td>\n<\/tr>\n<tr>\n<td>1665<\/td>\n<td>London, England<\/td>\n<td>Approximately 100,000 deaths<\/td>\n<\/tr>\n<tr>\n<td>1720\u20131722<\/td>\n<td>Marseille and surrounding areas, France<\/td>\n<td>Approximately 100,000 estimated deaths<\/td>\n<\/tr>\n<tr>\n<td>1850\u20131894<\/td>\n<td>China<\/td>\n<td>Major early outbreaks of the Third Plague Pandemic<\/td>\n<\/tr>\n<tr>\n<td>After 1896<\/td>\n<td>India<\/td>\n<td>Millions of recorded deaths over several decades<\/td>\n<\/tr>\n<tr>\n<td>1900<\/td>\n<td>San Francisco, USA<\/td>\n<td>Local outbreak and a major public health crisis<\/td>\n<\/tr>\n<tr>\n<td>1910\u20131911<\/td>\n<td>Manchuria, China<\/td>\n<td>More than 60,000 deaths<\/td>\n<\/tr>\n<tr>\n<td>1994<\/td>\n<td>India, particularly Surat and Beed<\/td>\n<td>54 deaths, according to NCDC<\/td>\n<\/tr>\n<tr>\n<td>2002<\/td>\n<td>Himachal Pradesh, India<\/td>\n<td>16 reported cases and 4 deaths<\/td>\n<\/tr>\n<tr>\n<td>2017<\/td>\n<td>Madagascar<\/td>\n<td>2,417 reported cases and 209 deaths<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>Note: The figures for different outbreaks are based on various historical and epidemiological sources. Some are estimates, while others are based on recorded or suspected cases. Therefore, these figures should not be considered equally precise or directly comparable.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"The_Discovery_of_Yersinia_Pestis_in_1894_How_Did_Science_Change_the_Fight\"><\/span>The Discovery of Yersinia Pestis in 1894: How Did Science Change the Fight?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>For thousands of years, people did not know what caused the Plague. During an epidemic in Hong Kong in 1894, Alexandre Yersin and Japanese scientist Shibasaburo Kitasato independently studied the bacterium that causes this disease.<\/div>\n<div>\nYersin made important contributions to identifying and studying the bacterium. Later, the bacterium was named Yersinia pestis in his honor. In 1898, scientist Paul-Louis Simond presented important research explaining the role of fleas in the spread of plague.<\/div>\n<div><\/div>\n<div>This discovery was historic.\u00a0 Before this, efforts to prevent infection were based on many misconceptions. Scientists were now beginning to understand that a specific bacterium caused the disease and that it had a natural transmission cycle among animals and fleas. Later, in the twentieth century, the development of Antibiotics changed the possibilities for treating plague.<\/div>\n<h3><span class=\"ez-toc-section\" id=\"Plague_Is_Spread_By_How_does_this_disease_actually_spread\"><\/span>Plague Is Spread By: How does this disease actually spread?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<div>Yersinia pestis infection does not spread through just one route. In the most common natural cycle, the bacterium persists among rodents and fleas. Humans can also become infected through the bite of an infected flea.<\/div>\n<div>\nIn addition, infection can occur through unprotected contact with the tissues or bodily fluids of an infected animal. In the case of Pneumonic Plague, infected respiratory particles from the lungs can reach another person through close contact. For this reason, it is incorrect to assume that all forms of Plague spread equally from person to person.<\/div>\n<div><\/div>\n<div>If the doctor strongly suspects plague, antibiotic treatment should not be delayed until the final laboratory report arrives. This does not mean that antibiotics should be started on one\u2019s own just because there is a fever. The diagnosis and treatment of plague should be carried out only by a trained medical specialist.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_the_Difference_Between_Yersinia_Pestis_and_Yersinia_Enterocolitica\"><\/span>What Is the Difference Between Yersinia Pestis and Yersinia Enterocolitica?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div>\n<p>Both bacteria belong to the Yersinia genus, but they cause different diseases.<\/p>\n<div>\n<div>\n<table>\n<tbody>\n<tr>\n<th>Feature<\/th>\n<th>Yersinia pestis<\/th>\n<th>Yersinia enterocolitica<\/th>\n<\/tr>\n<tr>\n<td>Main Disease<\/td>\n<td>Plague<\/td>\n<td>Yersiniosis<\/td>\n<\/tr>\n<tr>\n<td>Main Organs Affected<\/td>\n<td>Lymph Nodes, Blood, Lungs<\/td>\n<td>Intestines and Digestive System<\/td>\n<\/tr>\n<tr>\n<td>Common Transmission Routes<\/td>\n<td>Infected Fleas, Infected Animals, Respiratory Droplets<\/td>\n<td>Contaminated Food and Water<\/td>\n<\/tr>\n<tr>\n<td>Major Symptoms<\/td>\n<td>Fever, Painful Swelling, Severe Infection<\/td>\n<td>Abdominal Pain, Diarrhea, Fever<\/td>\n<\/tr>\n<tr>\n<td>Severity<\/td>\n<td>Can Become Life-Threatening Rapidly<\/td>\n<td>Generally Less Severe in Most Cases<\/td>\n<\/tr>\n<tr>\n<td>Treatment<\/td>\n<td>Immediate Medical Treatment with Antibiotics<\/td>\n<td>Treatment Depends on the Severity of the Infection<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>Both are Gram-negative bacteria, but they differ significantly in their natural transmission cycles and medical importance. Therefore, if a person is infected with Yersinia enterocolitica, it does not mean they have Plague.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Is_Yersinia_Pestis_Still_Present_in_the_World_Today\"><\/span>Is Yersinia Pestis Still Present in the World Today?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>After such major pandemics throughout history, it is natural to assume that science must have completely eradicated this bacterium. But that is not the case. Yersinia pestis still survives in some natural ecosystems around the world.<\/p>\n<p>It can maintain a cycle of infection among wild rodents and the fleas associated with them. For this reason, it is not easy to eradicate completely. According to the WHO fact sheet dated September 29, 2026, most human plague cases reported to the organization between 2019 and 2025 were associated with the Democratic Republic of the Congo and Madagascar. Natural Plague Foci also exist in the western United States and some other regions of Asia and Africa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_can_Plague_be_prevented\"><\/span>How can Plague be prevented?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>The most important part of preventing plague is controlling sources of infection and exposure in at-risk areas.<\/li>\n<li>Reduce the likelihood of rodents living and finding food in homes and surrounding areas.<\/li>\n<li>Do not touch sick or dead wild animals without protection.<\/li>\n<li>Take appropriate measures to protect against fleas in at-risk areas.<\/li>\n<li>Report incidents of unusually large numbers of animal deaths to the relevant health or wildlife authorities.<\/li>\n<li>Avoid unprotected close contact with a person suspected of having Pneumonic Plague, and follow medical instructions.<\/li>\n<li>Seek immediate medical attention if fever, painful swelling, or respiratory symptoms develop after a risky exposure.<\/li>\n<li>When necessary, health officials may also give people who have been in close contact Antibiotics as a preventive measure.<\/li>\n<li>However, it is not appropriate to use these medicines on your own.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion_Could_Yersinia_Pestis_Become_a_Major_Pandemic_Again\"><\/span>Conclusion: Could Yersinia Pestis Become a Major Pandemic Again?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The history of Yersinia pestis is not merely the history of an infectious disease. It is also the history of humanity\u2019s changing knowledge, failures, and scientific progress. Evidence of this bacterium has been found in human remains dating back thousands of years.<\/p>\n<p>Then the Plague of Justinian affected the ancient empire, the Black Death shook medieval society, and the third pandemic caused heavy loss of life in many parts of the world, including India. But one important difference exists today.<\/p>\n<p>Scientists now know which bacterium causes plague, how it can spread, and how it is treated. Thanks to modern Antibiotics, laboratory testing, and public health systems, the impact of a plague outbreak is no longer inevitably what it once was.<\/p>\n<p>Still, natural sources of the disease remain. So local outbreaks may occur in the future, and the possibility of a major outbreak cannot be considered entirely zero. The most important lesson from history is that a bacterium\u2019s small size does not make its impact small. But accurate scientific information, timely treatment, and a healthcare system can prevent it from turning into a major crisis.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Disclaimer\"><\/span>Disclaimer:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>This article is based on historical research, scientific studies, and published information from public health institutions. The death tolls of ancient pandemics may be estimated. This content is not a substitute for medical advice, diagnosis, or treatment. If you have suspected symptoms of plague or have had a risky exposure, contact a qualified physician immediately.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Abstract: Wars, famines, and natural disasters have claimed millions of lives throughout human history. But there has also been a&hellip;<\/p>","protected":false},"author":2,"featured_media":4910,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[387],"tags":[400],"class_list":["post-4909","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-yersinia-pestis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why has the Yersinia pestis virus come into discussion again after 5,000 years? - Healthpoints<\/title>\n<meta name=\"description\" content=\"What is Yersinia pestis? 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