Brazilian scientists have denied that the common mosquito known as Culex can transmit the Zika virus saying that the Aedes aegypti mosquito is known to be a main vector of the disease.At a press conference in Rio de Janeiro scientists from the Oswaldo Cruz Institute said on Tuesday that a study carried out with the Pasteur Institute in Paris had ruled out the Culex as a vector Xinhua news agency reported.The teams analysed 1600 mosquitoes collected from five different regions across Brazil. Half were Culex and half were Aedes aegypti. They were tested to determine their suitability as Zika vectors.The