SAO PAULO, June 4, 2016 (Xinhua) -- People walk past a sculpture of an Aedes Aegypti mosquito, created by artist Andre Farkas, in Sao Paulo, Brazil, on June 3, 2016. Brazilian Health Minister Ricardo Barros on Thursday denounced a recent letter from specialists in various countries asking for the upcoming Olympic Games to be delayed or staged in another country due to Zika as "an exaggeration," "an excess of zeal." (Xinhua/Rahel Patrasso