Zika virus is a member of the virus family Flaviviridae and the genus Flavivirus, transmitted by daytime active Aedes mosquitoes, such as A. aegypti and A. albopictus. Its name comes from the Zika Forest of Uganda, where the virus was first isolated in 1947. The most common symptoms of Zika are fever, rash, joint pain, conjunctivitis, muscle pain and headache. There is a strong evidence of link between the Zika virus and a birth defect called 'microcephaly' in which babies are born with undersized brain and skulls.The Zika virus is transmitted by daytime-active mosquitoes as its vector. As of September 2016, many reported cases indicate that Zika virus could possibly be sexually transmitted. Women in El Salvador and Colombia are being cautioned to avoid pregnancy due to the potentially dangerous Zika virus. Currently, there is no vaccine to prevent Zika virus disease. Prevention against mosquito bites and avoids travel to countries affected by Zika virus and avoids unprotective sex is the best form of protection.