Not medical advice. This site is general information only. In an emergency call your local emergency number. For advice about your own health, speak to a doctor, pharmacist or other qualified health professional.

The Deadliest Pandemics in Human History

From the Black Death to COVID 19, pandemics have shaped human civilization. Understanding the patterns of past pandemics helps us prepare for the next one.

Smallpox killed an estimated 300 million people in the 20th century alone. The 1918 flu killed tens of millions, with estimates ranging from about 17 million to 50 million or more.

HIV has killed 40 million over four decades..

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