Facts about CMV/HSV/Syphilis Herpes simplex virus is a common virus that causes both oral herpes (HSV-1) and genital herpes (HSV-2). 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. About one out of every 200 babies is born with congenital CMV infection. Over half of adults have been infected with CMV by age 40. 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