A U.S. health official warned Monday it's possible the Zika virus could spread to other Gulf states because of the area's semi-tropical weather and the difficultly in controlling the mosquito population.
And that means areas in Louisiana already hard hit by flooding need to be vigilant about taking measures to fight off mosquitoes, Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said in an interview with CNBC's "Closing Bell."
"Whenever you have a flood, it isn't during a flood that the mosquitoes flourish. You tend to get rid of them during the flood. It's when the flood recedes and you have standing water that you have a lot of mosquito activity, because that's where they lay their eggs," he said.