Which test is used to diagnose parvovirus in immunocompetent individuals?

The diagnosis of parvovirus in immunocompetent individuals is most effectively accomplished through the detection of specific antibodies and antigens. The presence of IgM antibodies indicates a recent infection, as these are typically produced in response to the virus and can be detected during the acute phase of the illness. Furthermore, in cases involving canines, a fecal CPV (canine parvovirus) antigen test is often used to confirm the presence of the virus in the feces, aiding in the diagnosis.

While PCR (polymerase chain reaction) could also be utilized for detecting viral DNA, it is not the primary diagnostic method for parvovirus in immunocompetent individuals. Blood counts and cultures are less relevant; a complete blood count might show leukopenia during infection but wouldn't confirm parvovirus specifically, and blood culture is not appropriate for viral infections. Therefore, the combination of IgM antibody detection and fecal antigen testing is the most accurate and reliable approach for diagnosing parvovirus in this population.