Public Health Poster for Malaria.

Man-Made Malaria. 6 mosquitoes in 10 breed in water in unnecessary ruts, abandoned roads, blocked ditches, fox and shell holes. U.S. Navy, Bureau of Medicine & Surgery, U.S. Government Printing Office, United States, 1945 War-time U.S. military health campaigns often conflated the Japanese enemy with disease-carrying flies and mosquitoes. Here, an anopheles mosquito is given the stereotypical features of the Japanese enemy and has the rising sun of the Japanese imperial flag. (Photo by: Universal History Archive/Universal Images Group via Getty Images)