Rebuilding the dairy herd is going to be a slow process.

It is the fourth human case in the US this year.

As of July 2, the federal department had confirmed cases in dairy herds in 12 states.

It was Iowa's first case involving a cow.

Individual states and outside nations are addressing their concerns with measures.

Though unrelated, the infection marks the second in the state of Michigan.

Take a look back at the most-read articles of the past month.

The agency reported one cow out of 96 sampled had a viral tissue sample.

Two vaccine options are in the country’s stockpile.

The agency said the patient only reported eye symptoms.