Facts about CMV/HSV/Syphilis About 10% of babies with congenital CMV have signs, such as jaundice, rash, microcephaly, or low weight, at birth. Herpes simplex virus is a common virus that causes both oral herpes (HSV-1) and genital herpes (HSV-2). CMV testing should be done within 2-3 weeks of birth to determine if it is congenital. 1 out of 3 pregnant women who become infected with CMV will pass it on to their unborn child. Pathogen Detection Kits Our quick, easy, and cost-effective kits are designed to rapidly identify any pathogen (virus, bacteria, fungi) in any environment. LEARN MORE