Flu vaccines have prevented millions of deaths, research shows

The 1918 Spanish flu pandemic was caused by a particularly virulent strain of influenza virus. It infected 500 million people, caused around 50 million deaths, and its impact was so severe that global life expectancy fell dramatically. It claimed more lives than the First World War.

This article was originally published on MedicalXpress.com

You may also be interested in:

Read More:

Lawyers Lookup