The live oral typhoid vaccine Ty21a: recent field trial results.
Germanier
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Levine
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D000284:Administration, Oral; D002648:Child; D002677:Chile; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004534:Egypt; D006801:Humans; D011897:Random Allocation; D014435:Typhoid Fever / Q000517:prevention & control*; D014436:Typhoid-Paratyphoid Vaccines; D014613:Vaccines, Attenuated
D014436:Typhoid-Paratyphoid Vaccines; D014613:Vaccines, Attenuated