Which infectious disease presents the most significant exposure risk to a kindergarten teacher who is pregnant?

Cytomegalovirus (CMV) represents a significant exposure risk for a kindergarten teacher who is pregnant due to its prevalence among young children and the potential consequences of maternal infection. CMV is a member of the herpesvirus family, and many individuals, especially children, shed the virus in their saliva, urine, and other bodily fluids. Therefore, teachers, who are often in close contact with young children, are at an increased risk for CMV exposure.

If a pregnant woman contracts CMV, especially during the first trimester, it can lead to serious complications for the fetus, including congenital CMV infection, which can result in hearing loss, neurological impairment, and other developmental disabilities. This particular risk makes CMV a significant concern for individuals working in educational environments with young children, where transmission is more likely.

Other infectious diseases also pose risks, but the nature of exposure to CMV in a kindergarten setting, alongside the potential severe outcomes of maternal infection during pregnancy, underscores why CMV is the primary concern in this context.