Sensitive detection of Pneumocystis jirovecii DNA in gastric wash using nested polymerase chain reaction
Limawongpranee, S.; Wanachiwanawin, D.; Chokephaibulkit, K.; Onchrotchanakun, J.; Lertlaituan, P.; Wankhom, S.
Southeast Asian Journal of Tropical Medicine and Public Health 38(5): 892-896
2007
ISSN/ISBN: 0125-1562 PMID: 18041308 Document Number: 612674
One hundred and five samples of gastric washes were obtained from 52 pediatric patients. Eleven of the 105 samples (10%) gave positive results using immunofluorescence antibody test (IFA) for Pneumocystis firovecii. Single-step polymerase chain reaction (PCR) produced 13 % (14 samples), whereas detection by nested PCR was increased to 65 samples (62%). Moderate agreement (kappa = 0.5) was found between test results of IFA and single-step PCR, but no agreement was found between the results of IFA and nested PCR (kappa = 0.1).