a virus carried by mosquitoes that may be connected with birth defects such as microcephaly (= having an abnormally small head), if a pregnant woman is infected

The Zika virus, spread by mosquitoes, produces an itchy rash, pinkeye, joint pain and fever. 寨卡病毒通过蚊子传播，会引起发痒的皮疹、红眼病、关节痛和发烧。