Image of the Week #40, April 30th, 2012:

From: 6 Sources of Free Images for Science Blogging by Alex Wild at Compound Eye

Source: NIH Images from the History of Medicine

Historically, more soldiers fall prey to disease than are killed by injuries sustained during combat. This 1944 U.S. Army poster by an anonymous artist enlisted humor to keep malaria casualties to a minimum, offering advice that remains relevant today.