A pandemic occurs when a disease turns into a global outbreak. The recent coronavirus, COVID-19, is now considered a pandemic. The deadly virus is affecting people all over the world.

It is causing countries to close their borders, urge people to stay indoors, and order businesses to cease operations. However, this isn’t the first time that a pandemic has affected so many lives at once. In this list, we’ll check out some of the deadliest pandemics of the past.

Top 10 Worst Plagues In History

10 Leprosy
The Middle Ages

Leprosy (aka “Hansen’s disease”) is a slow-developing bacterial disease that can lead to damage of the nerves, skin, eyes, and respiratory tract. Those infected by the disease may experience poor eyesight and muscle weakness. Some patients can no longer feel pain, which may result in the partial loss of extremities. The disease has affected humans for thousands of years, but it became a pandemic in Europe during the Middle Ages.

As they were deemed to be unclean, infected individuals had to wear certain clothing or a bell to signal their arrival. However, they were forbidden to go to many locations. It is believed that around 19,000 leper houses existed in Europe during this time.^[1]

Called “the living dead,” lepers were linked to sin and declared legally dead by civic leaders who confiscated the belongings of the sick. There are still around 200,000 cases of leprosy a year, but it can now be cured with medication. However, some patients need ongoing treatment for complications like blindness and paralysis.

9 Russian Flu
(1889–1890)

The Russian flu (aka “Asiatic flu”) was a deadly influenza pandemic that killed approximately one million people around the globe. The outbreak started spreading in 1889 and was the largest 19th-century epidemic of influenza. It was also the first true epidemic that happened in the era of bacteriology.

The initial cases were reported in Bukhara in Central Asia (Turkestan), Athabasca in northwestern Canada, and Greenland. Within six months, the disease had infected Saint Petersburg, Russia. Only four months later, the influenza had spread throughout the northern hemisphere. Rapid population growth in urban areas across the globe helped to create a pandemic.^[2]

8 The Third Cholera Pandemic
(1852–1860)

The deadliest of the seven cholera outbreaks was the third major outbreak that lasted from 1852 to 1860. Just like the first two pandemics, the third originated in India and spread throughout Asia, Europe, North America, and Africa. In 1854 (the worst year), cholera killed 23,000 people in Great Britain. Approximately, 10,000 of those victims were from London.

During the third cholera pandemic, about one million people lost their lives. Many deaths came from Russia, Chicago, Tokyo, Spain, Venezuela, and Brazil. Contaminated water was thought to be the cause of cholera.

British physician John Snow tracked cases in London and identified contaminated water as the cause of the transmission of the disease. He traced the water to the Broad Street pump and convinced local officials to remove the pump handle. Although the quantity of local cases dramatically decreased after his findings, the numbers continued to rise in other areas of the world for a few more years.^[3]

7 Smallpox
(1520)

For centuries, smallpox was a menace in Europe, Asia, and Arabia. Three of every 10 infected people died. The first European explorers brought the virus to the New World, where people were not immune to the disease. The people of modern-day Mexico and the United States saw death rates much higher than those of the Old World.

Some outbreaks of smallpox were considered epidemics. Here, we’ll talk about the one in 1520 that devastated the Aztec Empire. But overall, the spread of the disease across the globe made it a pandemic.

In North and South America, smallpox took approximately 100 years to destroy about 90 percent of the indigenous people. In Mexico, the population dropped to one million people from about 11 million before the European conquest. Ultimately, the deadly virus helped the Spanish to conquer the Aztecs and Incas because their populations barely existed thanks to the disease.^[4]

Centuries later, smallpox was the first virus epidemic stopped by a vaccine. In 1980, the World Health Organization declared that smallpox had been eradicated across the globe.

6 Antonine Plague
(165–180)

One of the deadliest pandemics in history is also one of the oldest. The Antonine Plague occurred in 165–180 and ultimately took the lives of about five million people. The Romans brought the disease back home with them after a war with the Parthians.

The disease started in Asia Minor and then spread to Greece and Italy. For the next two decades, the Roman Empire saw an outbreak unlike anything they had ever experienced.

At the peak of the spread, they were seeing about 2,000 fatalities per day. It was estimated that 7–10 percent of the entire Roman Empire was killed, with higher percentages in denser areas.

The empire’s corulers Marcus Aurelius and Lucius Verus both died during this time period. Many have speculated that they were killed by this disease. Although the ailment that attacked these people is unknown, many scholars believe it was an outbreak of smallpox.^[5]

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5 Asian Flu
(1957–58)

In the 20th century, the second major influenza pandemic was the Asian flu of 1957 (aka the “Asian flu pandemic”). The outbreak was responsible for more than one million deaths.

At the beginning of the Asian flu pandemic, the virus spread throughout China and the surrounding regions. Months later, the flu had reached the United States and was widespread in the United Kingdom.

Just three months into 1958, the United States had estimated that nearly 70,000 deaths were linked to the Asian flu. A vaccine was eventually developed that helped contain the pandemic.^[6]

4 The Great Plague
(1665–66)

As part of the Second Plague Pandemic, the Great Plague of 1665 caused leaders to close all public entertainment and seal the sick in their homes to help prevent the spread of the disease. In all, London lost roughly 15 percent of its population. Although the city recorded approximately 69,000 deaths, the actual number is believed to be over 100,000.

When the plague appeared in a household, a red cross was painted on the door with the words, “Lord have mercy on us.” Later, the lifeless bodies were removed and taken in a cart to a plague pit.^[7]

3 Black Death
(1347–1351)

One of the most devastating pandemics in history was the Great Bubonic Plague (aka the “Black Death“) in the mid-1300s. A deadly outbreak of the bubonic plague started in China in the 1330s. As the country was one of the busiest trading nations, the disease quickly spread elsewhere.

By 1347, the Black Death had arrived in Europe after several infected ships docked at Messina, a Sicilian port. Just five years later, the plague had killed over 20 million people in Europe.

The Black Death is widely believed to have been caused by Yersinia pestis bacteria. The disease mostly spread to people from the bites of infected rats and fleas. From there, it was highly infectious among humans.

The plague caused a fever along with buboes (swelling of the lymph glands). The disease also produced reddish spots on the skin that turned black, which is why people called it the Black Death.^[8]

2 The Third Plague Pandemic
(1855–1960)

In 1855, during the Xianfeng Emperor’s reign of the Qing dynasty, the Third Plague Pandemic began in China. This deadly bubonic plague eventually traveled through India and Hong Kong, killing at least 12–15 million people. India suffered the most casualties with more than 10 million deaths.

This was the third major bubonic plague outbreak to hit European society. The disease was initially spread by fleas during a mining boom in Yunnan, China. Casualties from the Third Plague Pandemic dropped to fewer than 200 per year in 1960. At that time, the World Health Organization determined that the plague was no longer active.^[9]

1 Spanish Flu
(1918–1920)

The deadliest flu pandemic in history started in 1918 and infected about one-third of the world’s population, or approximately 500 million people. Although estimates vary, it is believed that the Spanish flu killed about 50 million people, including almost 700,000 Americans.

The first wave of the influenza occurred in spring 1918, and it was generally mild. The second wave was highly contagious and hit the world with a vengeance.^[10]

The Spanish flu was initially seen in Europe, the United States, and Asia before spreading across the globe. Victims of the influenza were dying within hours and days of developing symptoms. The average life span in the US had decreased by 12 years after the Spanish flu had been around for only one year.

Schools, private homes, and other buildings became makeshift hospitals due to overcrowding in medical facilities. Quarantines were imposed, people were ordered to wear masks, and businesses were shut down until the virus completed its deadly run.

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Times are difficult as the world bands together to fight the coronavirus pandemic, but did you know there were several near pandemics in the recent past? In fact, some of the diseases in these close calls were far deadlier than Covid-19. Had some of these diseases slipped through the grasp of healthcare workers, the results could have been far more catastrophic than Covid. Here are 10 recent near pandemics deadlier than the coronavirus.

10 Ebola

Ebola is an extremely deadly disease originating in western Africa in 1976. The most probable theory of the disease’s origin is blood contact by humans with a primate carrying the virus. The initial symptoms seem mild, including fever, headache, muscle pain, and chills. Later on though, symptoms become deadly and unbearable, with a victim experiencing internal bleeding resulting in vomiting or coughing blood. Ebola is primarily spread through contact with bodily fluids of an infected person, or a person who has recently died from the virus. One strain of the Ebola virus has a nearly 3/4 mortality rate when contracted by humans.

The most deadly recent outbreak of ebola took place from 2013 to early 2016, with 28,646 cases and a shocking 11,323 deaths. The epidemic devastated multiple west African nations, with up to 59% of those hospitalized dying. Some other nations outside Africa experienced limited outbreaks of the virus, including four patients in the United States who were quickly isolated. A huge part of ending the pandemic was rigorous methods of contact tracing, and quarantining. Vaccines were used in a limited role to end the epidemic due to a lack of clinical testing at the time, but have since been used to stop several smaller outbreaks.

9 Aids

Today, much more is known about HIV/AIDS and its transmission, but in the early days of the epidemic in the 1980s, there was little knowledge on the disease. The disease was first identified in Los Angeles, San Francisco, and New York in 1981, but some experts believe that HIV could have been present in humans as early as the 1960s. Scientists have traced early transmission of the virus to non-human primates. Several misnomers exist regarding HIV/AIDS, including the now debunked patient zero theorem involving Canadian flight attendant Gaëtan Dugas.

More than 700,000 people have died of HIV/AIDS in the U.S. since the beginning of the crisis in 1981. The virus disproportionally affected gay and bisexual men, and was known by the moniker “gay cancer”. The virus only spreads through sexual intercourse or blood contact with an infected person. Today, treatment of HIV/AIDS is greatly improved, with doctors using methods to prevent HIV from progressing to AIDS in many cases. Patients may be prescribed a drug cocktail of antiviral drugs to fight the virus.

8 SARS

The SARS, or severe acute respiratory syndrome, epidemic occurred globally in the early 2000s. The first outbreak of the virus was identified in China, and would spread throughout east Asian and as far as the United States. Approximately 8,000 people were infected with SARS during the Epidemic, with almost 1,000 deaths. Patients with SARS may experience fevers, aches, diarrhoea, and pneumonia. The virus is spread through bodily droplets, when an infected person coughs or sneezes, the suspended liquid may be inhaled and infect another. SARS was ominously labeled the first pandemic of the 21st century by the media. In comparison to covid-19, SARS had a far higher mortality rate, with 10% of those infected not surviving their illness. The World Health Organization and CDC worked tirelessly during the pandemic to restrict travel and contain the virus as much as possible. Ultimately, the United States would see only eight cases, and measures were effective in preventing a massive outbreak in North America.

7 Swine Flu

The 2009 H1N1 virus, also known as swine flu, is a strain of influenza which caused an 11 month world-wide pandemic. This influenza virus strain is also responsible for the Spanish Flu and Russian Flu pandemics. The disease’s namesake comes from the virus arising from a mixture of genetic material from various bird, swine, and human flu viruses. This new virus combines its genetic material with the Eurasian pig flu virus, resulting in its name. Its symptoms are similar to the flu, and experts from the World Health Organization suspect that it is no deadlier.

Due to the unknown number of asymptomatic cases, it is difficult to pinpoint the exact number of cases during the pandemic, but experts estimate that it could be as high as 700 million to 1.4 billion. The number of estimated deaths range from 150,000 to 575,000 people, for comparison, 250,000 to 500,000 people die from the flu each year.

6 Cholera

Many people are unaware that there is currently a Cholera pandemic which has been ongoing since 1961 in many underdeveloped nations. Cholera primarily spreads when individuals consume water which is contaminated with fecal matter. For this reason, people in third world nations face an increased risk, and developed nations have seen a sharp decline in cases over the years as sanitation has improved to an all time high. If cholera is untreated, an infected person can die within hours. Common symptoms include diarrhoea, vomiting, thirst, and dehydration, and begin somewhere between 2 hours and 5 days after exposure.

The most recent outbreak of Cholera in the United States ended in 1866, with up to 1/10 people living in large cities dying from the disease. The primary way to fight cholera is to provide at risk regions with adequate sanitation services and clean drinking water, along with using cholera vaccines selectively when appropriate.

5 Typhoid Fever

Typhoid is a bacterial disease, and can be carried and spread without symptoms. The most common symptoms of the disease are a high fever, and sometimes abdominal pain, headaches, and constipation. The disease is known for some patients developing skin rashes characterized by rose colored spots. These symptoms are caused by the bacterium’s growth in the victim’s blood and intestines.

The most famous outbreak of typhoid in the United States occurred in 1906, involving the infamous Mary Mallon, better known as “Typhoid Mary”. Mary is thought to have brought Typhoid to the United States as the first asymptomatic carrier. The Irish immigrant infected an estimated 53 people in her work as a cook. She was quarantined by authorities but would return to her work as a cook, eventually being put into forced isolation for the final 30 years of her life. The epidemic’s ending was in large part due to the widespread usage of the vaccine, which is between 40 and 90 percent effective in preventing transmission of the bacterium, and can last up to 7 years.

4 Whooping Cough

Whooping cough is also called the “100 day cough”, coming from the disease’s symptoms sometimes persisting for up to 10 weeks. Whooping cough is an extremely contagious bacterial disease spread through suspended water droplets projected through an infected person’s sneezing or cough. The first symptoms of the disease resemble the common cold, but are soon followed by violent coughing fits lasting weeks. After a fit of coughing, a high-pitched whoop sound may be heard as the person breathes in, hence the name. Some individuals who suffer from whooping cough may cough so violently that they vomit or break ribs. Symptoms normally begin 7-10 days after infection; infections may occur in those vaccinated, but with more mild symptoms.

Whooping cough affects 16 million people each year, primarily in developing nations, with approximately 61,000 deaths. Most cases today occur in developing nations due to the lack of adequate health treatments. Outbreaks have been significantly diminished in the United States since the widespread implementation of vaccines, but some outbreaks have occurred in the early 2010’s. One such outbreak in California saw almost 10,000 cases and 10 infant deaths after misdiagnosis by doctors. Experts have concluded that this outbreak and others are in large part due to members of the public refusing the vaccine for non-medical reasons.

3 Measles

The Measles virus is a highly contagious airborne disease spreading through coughs, sneezes, and contact with nasal secretions. Symptoms normally reveal themselves 10-12 days after exposure, and can last 7-10 days. Initial symptoms include a high fever, cough, runny nose, and inflamed eyes. Two to three days after the start of these symptoms, Koplik’s spots may develop. These are small white spots which form inside the mouth, appearing like grains of salt near the molars. After the development of Koplik’s spots, the measles rash develops in the face and spreads to the rest of the body. Some other complications may also arise from the virus including pneumonia from measles induced immunosuppression.

Measles was considered eradicated from the Americas in 2016, but cases have continued to be identified since. One outbreak in 1991 took place in Philadelphia, in which 1400 people were infected with measles and nine children died. This spike began at the Faith Tabernacle Congregation faith healing church, who discouraged members to get vaccinated.

2 Polio

Poliomyelitis is an infectious disease caused by the poliovirus. Polio is spread by a person ingesting infected feces, and in rare cases through infected saliva. The vast majority of those infected with polio have no symptoms, and about a quarter experience mild flu-like symptoms. In 1/200 cases, the virus moves from the gut to invade the central nervous system. This causes the individual to experience muscle weakness, most commonly in the legs. The muscle weakness may also less commonly involve the muscles of the head, neck and diaphragm, and in rare cases require the assistance of an iron lung to maintain normal breathing. In victims where some level of muscle weakness occurs, 2 to 5 percent of children and 15 to 30 percent of adults die.

The first polio epidemic in the United States began in 1894, and large outbreaks would continue to pop up throughout the first half of the 20th century. Polio had a massive impact on America and public health, with the most famous case being president Franklin Delano Roosevelt. The peak period of polio in the US occurred between 1916 and 1955 with the approval of the Salk vaccine. In 1952, there were 57,628 reported cases and 3,145 deaths. Polio was eliminated in the Americas in 1994, and current vaccination efforts have helped to eradicate it from many third world countries as well.

1 Smallpox

Many consider smallpox to be a disease associated with the age of exploration, and the mid-17th century, but smallpox was not fully eradicated until 1978. The disease’s origin is unknown, but evidence from Egyptian mummies indicate it existed at least before the third century BCE. Small outbreaks occurred until its eradication, but the last major outbreak in the United States happened in 1902. The first symptoms of smallpox include fever and vomiting, with the eventual development of ulcers and distinct blisters. These blisters are characterized by a dent in the middle, and are filled with fluid. These blisters eventually scab and fall off leaving scars. Some of these scabs have survived in “time capsules”, such as a scab found in a Civil War era book in the late 20th century.

The last smallpox outbreak began in 1901 and lasted three years, with 1596 cases and almost 300 people dying. The epidemic had a 17% fatality rate, far less than previous outbreaks in less developed nations and without proper control measures. The smallpox vaccine is the primary reason for the disease’s eradication.

In today’s world the rise of transportation and exportation has opened the doors to numerous locations across the planet making our contact with other people more frequent than ever. It is easy to see how viral outbreaks might easily spread in such conditions, but what you might not realize is that global pandemics are not a new phenomenon. Below is a list of 10 pandemics throughout history that man has survived.

10 1968 Hong Kong Flu Pandemic

In July of 1968 an odd case of influenza was reported in Hong Kong. It was an H3N2 strain, on offshoot of H2N2 and it moved quick. Within two weeks cases were found in Singapore and Vietnam, and within 3 months it had spread to Australia, India, Europe and the United States.

At .5% the mortality rate was relatively low but that didn’t stop this bug from doing some major damage. By the time it was finally under control over a million people had died including over 500,000 in Hong Kong alone, decimating nearly 15% of its population.

There were also numerous casualties in West Germany and Berlin where the numbers were so high corpses were being placed in subway tunnels.

Luckily the strain shared traits with the Asian Flu of 1957 which it is believed helped people develop antibodies which may have helped lower the number of casualties.

9 1956 Asian Flu

The Asian Flu pandemic also found its roots in China claiming over 2 million lives before it was done. A blend of Avian strains and first reported in Singapore in 1956, the virus managed to spread across China before finding its way to the coat of the US in 1957.

According to the World Health Organization nearly 70,000 people died in the United States alone and many more throughout the world as this bad boy ran its two-year course.

8 1889 Russian Coronavirus Pandemic

The first reports of this Flu outbreak came from three locations. Turkestan, Northwestern Canada, and Greenland, in May 1889. Originally thought to be virus subtype H2N2, it was recently discovered to actually be the coronavirus subtype H3N8.

The outbreak managed to spread fast and far due to population growth and modern transportation methods that made it easier for the disease to get from location to location. Within 5 weeks the virus had reached its peak with over a million lives being lost.

The 1889 Influenza was considered the first real epidemic during the bacteriology age. Scientists have studied the outbreak patterns for years and much has been learned from its pathology.

7 Antonine Plague of 165 AD

When Roman soldiers returned home from Mesopotamia and the war with Parthia, they brought back more than just the spoils, they brought back a plague that killed nearly 5 million people before it had run its course.

Believed to be Smallpox or Measles this one ravaged the Roman army before moving on to parts of Egypt, Greece, Italy and Asia Minor. With their army laid waste the land was wide open to other attacks. Civil unrest grew and barbarians began invading. This outbreak is thought to have directly contributed to the fall of the Pax Romana era, a period when Rome was at the height of its power.

6 Plague of Justinian 541-549 AD

Called the first known pandemic by some, the Plague Of Justinian, named after the Roman emperor in Constantinople, Justinian I , it was believed to have killed nearly half the population of Europe.

The virus was the first recorded outbreak of the bubonic plague and, over an 8 year span, it wreaked havoc across Roman Egypt, the Mediterranean Sea, the Arabian Peninsula and Northern Europe.

At its height it is estimated this plague killed nearly 5,000 people a day in the city of Constantinople. The virus continued to eb and flow in waves over the next decade and it is estimated that 25 to 100 million lives were lost before it was all over, although some argue those numbers are likely high. Still, the impact was felt across the Roman Empire countryside. Its social impact was also wide reaching as the effects on farmers lead to a demand in grain and an increase in prices. It also weakened the Byzantine Empire at what would have been a critical point, as Justinian’s armies were set to retake the western Mediterranean cost and all of Italy in an attempt to reunify the Eastern Roman Empire to the Western Roman Empire.

5 Black Death of 1346

One of the most famous plagues in history, The Black Death, ripped its way through Africa, Asia and Europe between 1346 and 1353. This run of the Bubonic Plague devastated the European landscape wiping out an estimated 50% of the population.

Spread by fleas it travelled across continents via rats that stowed away on merchant ships. The estimated death toll was between 80 to 200 million with bodied being burned or placed in mass graves.

With so many dead, it grew more difficult to find skilled labor. If there was an upside to the massive death toll it is that the demand for workers brought about better pay. It also lead to higher quality in food production and is been credited in contributing to advancements in technology.

Today it is believed that this particular strain has died off, no longer posing a threat to the population.

4 Spanish Flu of 1918

Unlike the current Chinese coronavirus which we now know originated in China, contrary to the name it is not believed the Spanish Flu strain of influenza began in Spain. At the time the virus was making its way across the globe, Spain was considered a neutral nation and thus had no censorship of the press. With no real restrictions stories of the outbreak were published in earnest, and, since Spain was the one talking about the disease, they were falsely believed to be the origin of it.

When the pandemic began World War I was still in effect enhancing the effects of the spread on soldiers who were often in tight conditions and suffering from malnutrition. It is estimated that over 500 million people were infected, and the mortality rate was upwards of 10-20% causing nearly 25 million deaths within the first 6 months. The odd thing was that, unlike other strains of influenza, the Spanish Flu didn’t seem to just target the young and elderly, but also healthy young adults.

When it finally came to an end in 1920 this one had made its way over a third of the globe and had taken the lives of nearly 50 million people.

3 3rd Cholera Pandemic of 1852

There were 7 cholera pandemics in total and this was considered the worst. Lasting for 8 years this outbreak, similar to the first and second outbreaks, was believed to have originated in India then spreading to Europe, Asia, Africa and North America.

In London, the disease was eventually tracked, thanks to British Physician Johnathan Snow, to a contaminated water source in 1854, the same year the pandemic reached its apex in Great Britain bringing about the deaths of 23,000 people. Snow began mapping the reported cases and noticed a cluster of them centering around a water pump located in a single neighborhood. It is said that this revelation was the turning point that eventually helped get the spread under control.

Before its end the Cholera Pandemic of 1852 took the lives of over a million people.

2 6th Cholera Pandemic of 1910

Much like the aforementioned third pandemic, the Sixth Cholera Pandemic was also thought to have found its roots in India where over 800,000 people died, before spreading to the Middle East, North Africa, Russia and Eastern Europe.

Having learned from the past American health authorities got a jump on the outbreak. They moved fast, locating and isolating the infected to help prevent the spread. Only 11 recorded deaths took place in the United States and the overall death toll was low in comparison to previous outbreaks.

As facts on the spread of Cholera became more understood the threat of this deadly bacteria was largely reduced in the early 1920’s, although many parts of India are still effected by it today.

1 HIV Pandemic of 1981

Accounts of the first known case of the HIV virus differ with some claiming it to have been in Norway in the late 60’s, and others saying the first known case was from the Democratic Republic of the Congo in 1976. Most scientists believe it was developed from a Chimpanzee virus that transferred to humans in West Africa in the 1920’s but the first case of the virus in the United States was reported in 1981.

Without understanding of what the virus was or how it was spread fear began to grow as it quickly became a global crisis claiming the lives of over 36 million people since its discovery.

There was no cure, and for years there was no real way to treat it, but in the 1990s new drugs and procedures were discovered and eventually ways of controlling the virus came into effect. Today there are approximately 35 million people living with HIV, with over 60% of those being in Sub-Saharan Africa. People have learned to manage it, and, with regular treatment, most are able to live normal, productive lives. In early 2020 it was reported that through state-of-the-art stem cell replacement programs two people have been cured, both considered in “long term” remission and showing no active signs of the virus.

Unfortunately, global pandemics have been a part of life throughout history, but we have seen that man has overcome and will do so again . . . with dedication, compassion, and intelligence we are not only able to survive but thrive as well.