Another potentially fatal tropical infection spread by mosquitoes has reached the US. The A virus is also called sloth fever because it can be carried by slots as well as rodents and birds. It's spreading in South America and now Cuba cases have also been confirmed in Florida and New York all linked to travel from Cuba. The symptoms are flu like but not one in 20 cases could develop some more serious complications. It's mainly spread by a type of biting midge but it's carried by mosquitoes too. So the usual precautions like wearing but bug spray could be very effective in a defense. Researchers in Brazil say two people have died and they're looking into cases where it appears pregnant mothers pass the virus to a fetus. The CDC is recommending pregnant women avoid travel to areas, infection areas of infection rather that includes Cuba and Brazil.