Left side: Pie charts showing the proportion of individual anopheline vector mosquitoes examined which were positive for P. falciparum, P. vivax or both malaria parasite species in entomological studies conducted in Asia and Oceania (top) and in the subgroup of studies conducted in Thailand (bottom). On the right side are pie charts showing the proportion of malaria patients in Thailand with P. falciparum, P. vivax or both malaria parasite species concurrently assessed by PCR typing of blood samples (top). The proportion of patients in Thailand who have P. vivax infections following P. falciparum (without the possibility of reinfection) within a nine week period are shown below.
Imwong et al. Malaria Journal 2011 10:253 doi:10.1186/1475-2875-10-253