Pandemics in history

大流行病的簡短歷史。

In this app you will find facts and videos about pandemics .

- Easy to navigate interface

- Collection of videos

- Collection of facts

Pandemic is an epidemic of an infectious disease that has spread across a large region, for instance multiple continents or worldwide, affecting a substantial number of people. A widespread endemic disease with a stable number of infected people is not a pandemic. Widespread endemic diseases with a stable number of infected people such as recurrences of seasonal influenza are generally excluded as they occur simultaneously in large regions of the globe rather than being spread worldwide.