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

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

The US CDC advises avoiding unnecessary travel to Brazil and Cuba due to the presence of the Oropouche virus.  

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

Sloth fever symptoms are similar to those of other viral infections, making it difficult to distinguish without specific medical testing.