The latest outbreaks were reported in northern Phu Tho and southern Tien Giang and Dong Nai provinces with more than 570 infected cattle.
Report from Yen Bai Province's Department of Animal Health stated that the outbreak occurred in 15 communes in four districts, including Mu Cang Chai, Tran Yen, Yen Binh and Van Yen, where there are more than 760 infected cattle.
The department has culled about 60 pigs, cows and buffaloes and sent 9,500 vaccine doses and 549 litres of sterilisation material to infected and neighbouring areas.
About 100 pigs were slaughtered in the southern province of Tien Giang while 30 others were culled in central Ha Tinh Province.
Vice chairman of central Ha Tinh Province's People's Committee Le Dinh Son said that the disease had spread rapidly in 17 communes, where there were 120 reported cases.
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