Genetic diversity among Plasmodium falciparum field isolates in Pakistan measured with PCR genotyping of the merozoite surface protein 1 and 2

Table 3 Plasmodium falciparum parasite density stratified by number of msp-1 and msp-2 genotypes per infection.

Number of PCR fragments*	*msp-1*			*msp-2*
Number of PCR fragments*	N ^§	Parasite density (parasites/μl)	N	Parasite density (parasites/μl)
1	166	7049	170	7793
2	48	20160	44	9721
3	2	71746	2	61399

* Only samples with positive PCR outcomes in both msp-1 and msp-2 were included.
^§ Parasite densities were available form 216 patients.

ISSN: 1475-2875