Are also issuing a warning about another mosquito borne illness. Yeah, that's right. It's called sloth fever or sloth virus. The virus got its name because sloths are among the animals who routinely get infected this year, there have been more than 8000 cases worldwide compared to less than 1000 last year. Symptoms include fever, dizziness, nausea, vomiting, severe headache, joint and muscle pain, chills and a rash. Symptoms may go away within a week, then reappear. That's scary.