Outbreak

Severe Acute Respiratory Syndrome SARS was caused by the SARS coronavirus, first identified in Guangdong province, China...

The Ebola virus disease outbreak in West Africa from 2014 to 2016 was the largest Ebola outbreak in history. The outbrea...

The Zika virus outbreak in the Americas began in Brazil in early 2015 and spread to over 80 countries and territories. Z...

The Yellow Fever epidemic of 1793 in Philadelphia killed approximately 5,000 people, roughly 10 percent of the city popu...

Mary Mallon, known as Typhoid Mary, was the first identified asymptomatic carrier of typhoid fever in the United States....

The 1918 Spanish Flu hit Philadelphia with devastating force. On September 28, 1918, the city held a Liberty Loan parade...

The Broad Street cholera outbreak of 1854 in London was the investigation that established modern epidemiology. Dr John ...

The Great Plague of London in 1665 was the last major bubonic plague outbreak in England. The plague killed approximatel...

Epidemic typhus, caused by Rickettsia prowazekii and transmitted by body lice, devastated concentration camp prisoners d...

The 1916 polio epidemic in New York City was the first major polio outbreak in the United States. The epidemic caused ap...

The introduction of measles to Hawaii in 1848 devastated the native Hawaiian population. Captain James Cook had arrived ...

Ebola Reston was discovered in 1989 when monkeys at a quarantine facility in Reston, Virginia, began dying from a filovi...

Legionnaires disease was first identified in July 1976 when 182 people fell ill and 29 died after attending an American ...

Toxic Shock Syndrome TSS became widely known in 1980 when an outbreak of Staphylococcus aureus TSS affected young women ...

The 2001 anthrax attacks occurred one week after the September 11 terrorist attacks. Letters containing Bacillus anthrac...

Middle East Respiratory Syndrome MERS is caused by the MERS coronavirus MERS CoV, first identified in Saudi Arabia in 20...

Nipah virus was first identified in 1998 during an outbreak in Malaysia that killed 105 of 265 infected people, a case f...

Lassa fever is a viral hemorrhagic fever caused by the Lassa arenavirus, first identified in 1969 in Lassa, Nigeria. The...

Rift Valley Fever RVF is a viral zoonosis that primarily affects animals but can infect humans. The virus was first iden...

In May 1993, a cluster of unexplained deaths occurred in the Four Corners region of the southwestern United States where...

Marburg virus disease was first recognized in 1967 when laboratory workers in Marburg and Frankfurt, Germany, and Belgra...

The 2022 mpox outbreak, formerly known as monkeypox, was the first time mpox spread widely outside of Africa. The outbre...

The 1976 swine flu scare began when a soldier at Fort Dix, New Jersey, died of an H1N1 swine influenza virus similar to ...

The Tylenol murders of 1982 were a series of poisoning deaths in the Chicago area. Seven people died after taking Extra ...

The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self lumi...

Minamata disease is a neurological syndrome caused by severe mercury poisoning, first identified in 1956 in Minamata, Ja...

The Flint water crisis began in April 2014 when the city of Flint, Michigan, switched its water source from Lake Huron t...

Love Canal was a neighborhood in Niagara Falls, New York, built on top of a toxic waste dump containing 21,000 tons of t...

The 1721 Boston smallpox epidemic infected more than half of the approximately 10,600 residents and killed about 844. Du...

Yellow fever and malaria devastated both French and American canal construction efforts in Panama. The French effort led...

Epidemiological and genomic studies traced the 2010 Haiti cholera outbreak to a base housing United Nations peacekeepers...

E coli O157 H7 was first identified as a pathogen in 1982 during outbreaks linked to McDonalds hamburgers in Oregon and ...

The 2014 mumps outbreak in the National Hockey League affected more than a dozen players. Mumps, a vaccine preventable v...

Pellagra, caused by niacin vitamin B3 deficiency, reached epidemic proportions in the American South in the early 20th c...

The 1918 Spanish Flu devastated Brazil, with estimates of deaths as high as 300,000 in a population of approximately 30 ...

The Delta wave in India in April to May 2021 was one of the most devastating COVID outbreaks globally. Official figures ...

The 1949 polio outbreak in the US was one of the worst before vaccine availability. Approximately 42,000 cases were repo...

Toronto was the worst affected city outside Asia during the 2003 SARS outbreak. The virus arrived in February 2003 with ...

The 2018 to 2020 Ebola outbreak in the Democratic Republic of Congo was the second largest Ebola outbreak in history. Th...

The first recorded Ebola outbreak occurred in Yambuku, Zaire now DR Congo, in 1976. The first recognised case was Mabalo...

A massive chikungunya outbreak occurred on Reunion Island in 2005 to 2006. Approximately 266,000 of the roughly 770,000 ...

West Nile Virus was first detected in the Western Hemisphere in August 1999 when an unusual cluster of encephalitis case...

A new mpox outbreak caused by Clade I mpox virus emerged in the Democratic Republic of Congo in 2023 to 2024. Clade I ha...