%0 Journal Article %T Prevalence of non-falciparum malaria infections among asymptomatic individuals in four regions of Mainland Tanzania. %A Popkin-Hall ZR %A Seth MD %A Madebe RA %A Budodo R %A Bakari C %A Francis F %A Pereus D %A Giesbrecht DJ %A Mandara CI %A Mbwambo D %A Aaron S %A Lusasi A %A Lazaro S %A Bailey JA %A Juliano JJ %A Gutman JR %A Ishengoma DS %J Parasit Vectors %V 17 %N 1 %D 2024 Mar 23 %M 38519992 %F 4.047 %R 10.1186/s13071-024-06242-4 %X BACKGROUND: Recent studies point to the need to incorporate the detection of non-falciparum species into malaria surveillance activities in sub-Saharan Africa, where 95% of the world's malaria cases occur. Although malaria caused by infection with Plasmodium falciparum is typically more severe than malaria caused by the non-falciparum Plasmodium species P. malariae, P. ovale spp. and P. vivax, the latter may be more challenging to diagnose, treat, control and ultimately eliminate. The prevalence of non-falciparum species throughout sub-Saharan Africa is poorly defined. Tanzania has geographical heterogeneity in transmission levels but an overall high malaria burden.
METHODS: To estimate the prevalence of malaria species in Mainland Tanzania, we randomly selected 1428 samples from 6005 asymptomatic isolates collected in previous cross-sectional community surveys across four regions and analyzed these by quantitative PCR to detect and identify the Plasmodium species.
RESULTS: Plasmodium falciparum was the most prevalent species in all samples, with P. malariae and P. ovale spp. detected at a lower prevalence (< 5%) in all four regions; P. vivax was not detected in any sample.
CONCLUSIONS: The results of this study indicate that malaria elimination efforts in Tanzania will need to account for and enhance surveillance of these non-falciparum species.