B19 virus

a species belonging to the genus Erythrovirus that binds to the erythrocyte P blood group antigen and is the cause of erythema infectiosum. In patients with hemolytic anemia or sickle cell disease it causes aplastic crisis; it can also cause acute arthritis. Fetal infection can cause hydrops fetalis and spontaneous abortion or death in utero. Persistent infection in immunocompromised patients can lead to chronic bone marrow failure. Called also human parvovirus B19.

Medical dictionary. 2011.

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