Sloth fever has been reported in South America, Central America, and the Caribbean.  

Approximately 60% of people infected with the Oropouche virus become ill, experiencing symptoms of Sloth fever.

The CDC issued a warning due to the spread of the Oropouche virus in regions near the US and to advise caution for residents, especially those traveling to affected areas.      

The Oropouche virus was named after a village in Trinidad and Tobago where the virus was first isolated from an infected person.  

Orthobunyaviruses are a group of viruses that includes the Oropouche virus, which is different from flaviviruses like dengue and alphaviruses like chikungunya.