Yes, serious complications such as encephalitis and meningitis (inflammation of the brain and surrounding membranes) have occasionally been reported.  

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 first identified in 1955.  

Sloth fever is not directly contagious between humans. It is transmitted through the bites of infected mosquitoes and biting midges.  

No, despite the name, Sloth fever is not contracted via contact with sloths.