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. Over half of adults have been infected with CMV by age 40. 1 out of 3 pregnant women who become infected with CMV will pass it on to their unborn child. 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