Volume 83, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The diagnosis of malaria in biological fluids other than blood using non-invasive, rapid diagnostic techniques provides a valuable approach in case management and epidemiological studies of malaria. Rapid detection of lactate dehydrogenase (pLDH) in saliva samples from 130 of 144 children with microscopically confirmed infection was evaluated using Optimal-IT dipsticks. Genotyping of parasites was also performed in saliva and blood samples from a cohort of patients by polymerase chain reaction (PCR). The sensitivity of the dipstick in whole-blood, whole-saliva, or supernatant of spun saliva samples was 97.2%, 77.9%, and 48.4%, respectively. The sensitivity of the dipstick in whole-saliva samples was significantly higher than in supernatant of spun saliva samples ( < 0.0005). Mutant T76 allele was detectable in 60% and 57% of blood and saliva samples, respectively. This finding shows rapid detection of pLDH in patient saliva.


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  • Received : 18 Mar 2010
  • Accepted : 26 Apr 2010
  • Published online : 07 Sep 2010

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