Foot-and-mouth disease--a world problem.
D000349:Africa; D000818:Animals; D005537:Aphthovirus; D001208:Asia; D005060:Europe; D005536:Foot-and-Mouth Disease / Q000453:epidemiology* / Q000266:history / Q000382:microbiology; D049672:History, 19th Century; D049673:History, 20th Century; D013020:South America; D014481:United States