Figure 3From: Epidemiologic aspects of the malaria transmission cycle in an area of very low incidence in BrazilDNA extracted from acute malaria patients and amplified by multiplex PCR. 1: Molecular weight (100 bp, Invitrogen); 2: negative control; 3 and 10: negative results from positive patients; 4–9, 11–13 and 15–16: P. vivax fragment (499 bp); 14: P. malariae fragment (269 bp).Back to article page