Zika virus detection test kit by using qPCR. The infection, known as Zika fever, often causes no or only mild symptoms, similar to a mild form of dengue fever. Additionally, there is evidence that Zika fever in pregnant women can cause abnormal brain development in their fetuses by mother-to-child transmission, which may result in miscarriage or microcephaly. Transmission usually is through Aedes mosquitoes, but has been reported the transmission by infected blood or sexual contact.