A second Clark County swine herd has contracted pseudorabies, a disease that's not dangerous to humans but causes seizures and stillbirths in pigs.

The latest outbreak was found southeast of Loyal a week after a herd of 300 swine in the Greenwood area tested positive.

The U.S. Department of Agriculture gave the state until May 2nd to destroy the infected Greenwood herd and test all swine herds within five miles.

A new quarantine zone has been established in the new zone around Loyal, which is slightly farther than five miles from Greenwood.

Experts say the disease, completely eradicated from commercial swine operations in the U.S. in 2003, could have been introduced to Clark County by feral pigs.