. Preventive medicine and hygiene. FiG. 31.—PuPARiuM OF House Fly. brewers refuse (spent hops), fly, but have a sharp, needle-like proboscis,sively on mammalian blood and are a great annoyance to horses andcattle in late summer and autumn. They bite persons less frequently,but are of importance onaccount of their possiblerelation to poliomyelitis,anthrax, etc. The sta-ble fly can best be con-trolled by eliminating itsbreeding places. Flies as MechanicalCarriers of Infection.—Leidy in 1864: attributedthe sjDread of gangrenein hospitals during theCivil War to the agencyof the house fly
. Preventive medicine and hygiene. FiG. 31.—PuPARiuM OF House Fly. brewers refuse (spent hops), fly, but have a sharp, needle-like proboscis,sively on mammalian blood and are a great annoyance to horses andcattle in late summer and autumn. They bite persons less frequently,but are of importance onaccount of their possiblerelation to poliomyelitis,anthrax, etc. The sta-ble fly can best be con-trolled by eliminating itsbreeding places. Flies as MechanicalCarriers of Infection.—Leidy in 1864: attributedthe sjDread of gangrenein hospitals during theCivil War to the agencyof the house fly. Short-ly thereafter it was dis-covered that the bite of the gad-fly may transmit anthrax from cattleto man. Later it was found that purulent ophthalmia of the Egyptiansis carried by the house fly, and the spread of an infectious conjunctivitisknown as pink eye in the South has been shown by Hubbard to be. Fig. 32.—Stable FhY {Stotnoxys calcitrans). (Brues.) FLIES 251
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Keywords: ., bookauthorwh, bookcentury1900, bookdecade1910, booksubjecthygiene
