Facts about CMV/HSV/Syphilis 1 out of 3 pregnant women who become infected with CMV will pass it on to their unborn child. There are currently no vaccines for CMV. 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. 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