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Montana officials say cow tests positive for brucellosis, state to lose disease-free status

Montana officials say cow tests positive for brucellosis, state to lose disease-free status

Montana officials say a cow has tested positive for brucellosis _ a serious livestock disease that had been nearly eradicated among U.S. cattle earlier this year.
The test means Montana ranchers must undergo a costly vaccine and testing program.
Brucellosis is a disease carried by wild animals including bison and elk in greater Yellowstone area. It can cause pregnant cows to abort their calves but transmission to humans is rare.
The U.S. Department of Agriculture had declared all 50 states to be brucellosis-free in February, the first time that had happened in 74 years.
States lose their brucellosis-free status if the disease is found in more than one herd of cattle in two years. Montana discovered the disease in another herd in May 2007.


Updated : 2021-04-19 20:36 GMT+08:00