How common is Zika virus infection
The Zika virus also belongs to the Flaviviridae family and is transmitted by the same mosquito as CHIK and dengue viruses. Historically, outbreaks of Zika virus have occurred in Africa, Southeast Asia, and the Pacific. However, since 2015, the Zika virus epidemic has spread to the Caribbean and the Americas (South America, Central America, Mexico and the United States). Zika virus is transmitted via mosquito bite, transfusion of blood products, sex, and maternal-fetal route. Clinically, most cases are asymptomatic or mild and self-limited. Symptomatic cases may manifest with fever, pruritic rash, conjunctivitis, myalgia, and arthralgia without arthritis.