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- W4244467286 abstract "<ns3:p><ns3:bold>Background:</ns3:bold> Targeted malaria elimination strategies require highly sensitive tests to detect low density malaria infections (LDMI). Commonly used methods for malaria diagnosis such as light microscopy and antigen-based rapid diagnostic tests (RDTs) are not sensitive enough for reliable identification of infections with parasitaemia below 200 parasites per milliliter of blood. While targeted malaria elimination efforts on the Thailand-Myanmar border have successfully used high sample volume ultrasensitive quantitative PCR (uPCR) to determine malaria prevalence, the necessity for venous collection and processing of large quantities of patient blood limits the widespread tractability of this method.</ns3:p><ns3:p> <ns3:bold>Methods:</ns3:bold> Here we evaluated a real-time reverse transcription PCR (RT-qPCR) method that reduces the required sample volume compared to uPCR. To do this, 304 samples collected from an active case detection program in Kayin state, Myanmar were compared using uPCR and RT-qPCR.</ns3:p><ns3:p> <ns3:bold>Results:</ns3:bold> <ns3:italic>Plasmodium </ns3:italic>spp. RT-qPCR confirmed 18 of 21 uPCR <ns3:italic>Plasmodium falciparum</ns3:italic> positives, while <ns3:italic>P. falciparum</ns3:italic> specific RT-qPCR confirmed 17 of the 21 uPCR <ns3:italic>P. falciparum</ns3:italic> positives. Combining both RT-qPCR results increased the sensitivity to 100% and specificity was 95.1%.</ns3:p><ns3:p> <ns3:bold>Conclusion:</ns3:bold> Malaria detection in areas of low transmission and LDMI can benefit from the increased sensitivity of ribosomal RNA detection by RT-PCR, especially where sample volume is limited. Isolation of high quality RNA also allows for downstream analysis of malaria transcripts.</ns3:p>" @default.
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- W4244467286 date "2021-08-04" @default.
- W4244467286 modified "2023-10-15" @default.
- W4244467286 title "Reverse transcription PCR to detect low density malaria infections" @default.
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- W4244467286 doi "https://doi.org/10.12688/wellcomeopenres.16564.2" @default.
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