01016nas a2200421   4500000000100000008004100001260000900042653001300051653001400064653002000078653001200098653001200110653003300122653002000155653002900175653001500204653001800219653001100237653001700248653002700265653001800292653001200310653001200322653001100334653001100345653002000356653001300376653001100389653002000400653003300420653003000453653001700483100002100500245004100521300001100562490000700573022001400580       1973                            d  c197310aAircraft10aAmebiasis10aAnimal Diseases10aAnimals10aCholera10aCommunicable Disease Control10aDisease Vectors10aEncephalitis, Tick-Borne10aFilariasis10aHelminthiasis10aHumans10aImmunization10aInternational Agencies10aLeishmaniasis10aleprosy10aMalaria10aPlague10aRabies10aRelapsing Fever10aSmallpox10aTravel10aTrypanosomiasis10aTyphus, Epidemic Louse-Borne10aWorld Health Organization10aYellow Fever1 aBruce-Chwatt L J00aGlobal problems of imported disease.  a75-1140 v11  a0065-308X