Infectious Outbreaks

The U.S. Department of Agriculture announced that 15 more states have enrolled in a national H5N1 milk testing program, raising the number to 28 states, which represents roughly 65% of the nation’s milk production, the agency said.

Wastewater surveillance can detect a single mpox case in large samples representing thousands to millions of people, and its effectiveness increases as the number of cases grows, according to a study.

Mpox spread around the globe in 2022, popping up in 110 countries — including 103 that had not historically reported the disease, according to CDC tracking.

Norovirus outbreaks have rebounded to pre-pandemic levels as COVID-19 mitigation measures have eased around the country, CDC researchers reported on Thursday.