Spanish flu

src: www.thenational.ae The Spanish flu (January 1918 - December 1920), also known as the 1918 flu pandemic , was an unusually deadly influ...

Adaptive immune system

src: i.pinimg.com The adaptive immune system , also known as the acquired immune system or, more rarely, as the specific immune system , is...

Andreas Vesalius

src: inmyownterms.com Andreas Vesalius ( ; 31 December 1514 - 15 October 1564) was a 16th-century Flemish anatomist, physician, and author ...