IgM antibodies against Parvovirus B19 (Erythema infectiosum)

The Parvovirus B19 (IgM) test detects a recent infection with the virus that causes infectious erythema (fifth disease), especially important for pregnant women and individuals with weakened immunity. Specific IgM antibodies are produced in response to contact with the virus causing, among other things, infectious erythema.

When to Perform the Test

The test is recommended when the patient's clinical presentation suggests a possible infection and for individuals with weakened immunity. In pregnant women, the isolated presence of IgM antibodies confirms a recent infection and indicates a high risk for the fetus.

Medical Conditions

Neonatal anemia, thrombocytopenia, leukopenia, transient aplastic crisis, infectious erythema.

Symptoms

Infectious erythema may present with symptoms such as fever, fatigue, headache, muscle pain, nausea, runny nose, rash (ranging from red, spotty on the cheeks to erythematous, maculopapular on the trunk and limbs), and joint inflammation (commonly in the hands, ankles, knees, and wrists).