Farms within an 8 kilometre radius of the second pseudorabies positive herd near Loyal, Wisconsin, US have tested negative.
As a consequence, quarantines have been removed on 35 herds tested in connection with the Loyal site.
This follows last week’s announcement that 33 herds associated with the first infected site, in Greenwood, had also been cleared.
Both infected herds have been depopulated and will be cleaned and disinfected by state and federal officials.
Herds located within 2 miles (3 kilometres) of each site will be retested within 30 to 60 days and, if negative, the original farms may then repopulate.
Pseudorabies is also known as Aujeszky’s Disease.