Health crusades and tropical diseases.
Worldwide attempts to eradicate yaws, malaria, and smallpox have all been effective to varying extents, and all have taught some valuable lessons that should be taken into account as a new global crusade is mounted against tropical diseases. But it should not be forgotten that infectious disease remains a major public health problem in the U.S., and new diseases are arising to replace those already vanquished.
D006801:Humans; D008288:Malaria / Q000517:prevention & control*; D012899:Smallpox / Q000517:prevention & control; D014330:Tropical Medicine; D015001:Yaws / Q000517:prevention & control*