SARS Outbreak
A new coronavirus emerged in southern China and spread to 26 countries, killing nearly 800 people and foreshadowing the COVID-19 pandemic.
In November 2002, a novel coronavirus (SARS-CoV) emerged in Guangdong Province, China, likely jumping from bats to civets to humans. By February 2003, the virus had spread to Hong Kong, where a single infected doctor at the Metropole Hotel transmitted it to guests who carried it to Vietnam, Singapore, Canada, and beyond. The World Health Organization issued a rare global alert. SARS infected over 8,000 people in 26 countries and killed 774 — a case fatality rate of nearly 10%. Aggressive quarantine measures contained the outbreak by July 2003. SARS demonstrated how rapidly a respiratory virus could spread via air travel and exposed critical weaknesses in global surveillance systems — lessons that were largely forgotten by the time SARS-CoV-2 emerged 17 years later.
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A devastating epidemic struck Athens during the Peloponnesian War, killing an estimated quarter of the population including Pericles, and undermining Athenian democracy at its peak.
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A devastating pandemic — likely smallpox — swept through the Roman Empire, killing an estimated 5 million people and weakening Rome's military and economic foundations.
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The bubonic plague pandemic arrived in Europe, eventually killing an estimated 30-60% of the European population.
~1520Smallpox Devastates the Americas
European colonizers brought smallpox to the Americas, killing an estimated 90% of the Indigenous population and enabling the rapid conquest of vast civilizations.