Figure 1From: Parvovirus B19 infection in Tunisian patients with sickle-cell anemia and acute erythroblastopenia Agarose gel electrophoresis pattern of parvovirus B19 DNA amplicons. (A) 398 bp DNA bands obtained in the first round of PCR; (B) 288 bp DNA bands obtained in the second round of PCR. M: molecular weight marker (100 bp ladder, Invitrogen). P: positive control; lanes 1 to 4: amplicons of sera from patients 1 to 4, respectively.Back to article page