Krutsay M
J Am Vet Med Assoc. 1979 Dec 15;175(12):1278-80.
Psoroptic scabies of cattle causes substantial economic losses. An eradication program begun in 1905 virtually eradicated the disease by 1950. Complacency was followed by a resurgence of the disease, particularly in the 1970s, when more than 1,000 outbreaks were reported. Program effectiveness was reduced when the disease was often not detected or reported for several months after herds became infested. Further spread was enhanced by infested cattle moving undetected through market channels.
牛痒螨疥癣会造成巨大的经济损失。1905年启动的一项根除计划到1950年时几乎根除了这种疾病。自满情绪之后，该病再度出现，尤其是在20世纪70年代，当时报告了1000多起疫情。当畜群受到感染后，该病往往在几个月内未被发现或报告，这降低了计划的成效。受感染的牛通过市场渠道未被察觉地流动，进一步加剧了疾病的传播。
