Revelers wearing mosquito nets as carnival costumes, playing to protect themselves from the Aedes aegypti mosquito, participate in the Galo da Madruga or The Dawn Rooster carnival parade, in downtown of Recife, Pernambuco state, Brazil, on Saturday. The Aedes aegypti is a vector for the transmission of the Zika virus. Brazil is currently in the midst of a Zika outbreak.
(AP Photo/Eraldo Peres)