Facts about CMV/HSV/Syphilis A positive test for CMV IgG indicates that a person was infected with CMV at some time during their life but does not indicate when a person was infected. CMV testing should be done within 2-3 weeks of birth to determine if it is congenital. There are currently no vaccines for CMV. About one out of every 200 babies is born with congenital CMV infection. 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