The detection of 21 cases of the insect-borne Oropouche virus disease, also known as "sloth fever," in U.S. travelers returning from Cuba has prompted health officials to issue a warning.
Why it matters: "Recent reports of outbreaks in areas without previous endemic transmission, fatal cases, and vertical transmission associated with adverse pregnancy outcomes have raised concerns about human health risks," per a CDC report issued Tuesday on the virus that's infected thousands in South America and the Caribbean.
