Parvovirus B19 and in situ immune response in eczema and psoriasis skin lesions of patients from the Brazilian Amazon region.

Parvovirus B19 (PVB19) is a virus found in the skin that causes asymptomatic infections and can exist in the host for long periods to time. The virus induces a local inflammatory response and is associated with the development of arthritis and other autoimmunes diseases. Parvovirus B19 DNA was investigated by PCR in the skin of 20 patients with psoriasis and 20 patients with eczema.