A Panama's Health Ministry worker fumigates a street during a campaign to fight the mosquito Aedes Aegypty, vector of the Zika virus, in Panama City, capital of Panama, on Feb. 2, 2016. The director in charging of Epidemiology of the Department of Health of Panama, Israel Cerdeno, said Tuesday that the number of Zika virus cases in Panama increased to 50, mainly in the indigenous region of Guna Yala, according to local press information. (Xinhua/Mauricio Valenzuela)