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Table 6 Relationship between parasitaemia and nPCR-saliva after one year

From: Detection of Plasmodium falciparum DNA in saliva samples stored at room temperature: potential for a non-invasive saliva-based diagnostic test for malaria

Parasitaemia at enrolment (n) Samples that remained positive after 1 year n (%) Samples initially positive but negative after 1 year n (%)
Sub microscopic (14) 7 (50) 7 (50)
< 1000 (5) 5 (100) 0
1000–10,000 (11) 9 (82) 2 (18)
> 10,000–< 50,000 (11) 11 (100) 0
50,000–< 100,000 (7) 7 (100) 0
> 100,000 (6) 5 (83) 1 (17)
  1. Originally, 53 samples were nPCR-saliva-positive. A year later, the samples were re-screened and n = 43 remained positive, but 10 were negative