Testing the level of IgM antibodies against chickenpox in the blood blood. The presence of IgM antibodies in the blood indicates an ongoing infection.
IgM antibodies appear first in the blood after infection with the chickenpox virus. IgM antibody levels rise and reach a maximum value within 7-10 days after infection, then disappears over the next few weeks.
Chickenpox is an infectious disease caused by the Varicella virus zoster. The chickenpox virus enters the human body through the oral cavity. It multiplies in the epithelial cells of the upper respiratory tract respiratory tract, and then with the blood it enters the superficial parts of the skin and manifests as a vesicular rash.