Facts about CMV/HSV/Syphilis About one out of every 200 babies is born with congenital CMV infection. Young children are a common source of CMV. By the age of 5 years, 1 in 3 children has been infected with CMV but usually does not have symptoms. About 15% of babies with congenital CMV will not have signs at birth but will later develop hearing loss. Herpes simplex virus is a common virus that causes both oral herpes (HSV-1) and genital herpes (HSV-2). 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