More Monkeypox Cases Suspected in Fourth US State: Officials

This 2003 electron microscope image made available by the Centers for Disease Control and Prevention shows mature, oval-shaped monkeypox virions, (left); and spherical immature virions obtained from a sample of human skin associated with the 2003 prairie dog outbreak (right). Cynthia S. Goldsmith, Russell Regner/CDC via AP

Authorities in Utah on Monday said they are investigating two possible monkeypox cases—the fourth U.S. state to probe potential instances of the virus in recent days.

The Salt Lake County Health Department said two adults in a household located in the country are suspected to have monkeypox based on preliminary testing, according to a news release.