Development of a genomics-based PCR assay for detection of Mycoplasma pneumoniae in a large outbreak in New York State.

Autor: Waring AL; David Axelrod Institute for Public Health, Wadsworth Center, New York State Department of Health, Albany, New York 12201, USA., Halse TA, Csiza CK, Carlyn CJ, Arruda Musser K, Limberger RJ
Jazyk: angličtina
Zdroj: Journal of clinical microbiology [J Clin Microbiol] 2001 Apr; Vol. 39 (4), pp. 1385-90.
DOI: 10.1128/JCM.39.4.1385-1390.2001
Abstrakt: A genomics-based PCR method was developed and used to test specimens from patients involved in a large outbreak of Mycoplasma pneumoniae in a closed religious community in New York State. New P1 adhesin gene primers were designed to bind to 9 of 10 target sequences in the repetitive-element sequences obtained from the whole genome sequence of M. pneumoniae. This PCR method had a sensitivity of 0.006 CFU and a specificity of 100% for M. pneumoniae. The PCR was validated by testing a subset of patient samples by culture and comparing the results to those obtained by PCR. Of the initial 280 samples tested, 73 were positive by PCR and 22 were positive by culture. All samples positive by culture were also positive by PCR. Follow-up testing of selected patients 3 to 6 weeks after antibiotic treatment revealed that eight samples remained positive by PCR and that three samples remained positive by culture. Additionally, no nonspecific PCR inhibition was detected as a result of the specimen type, transport medium, or sample preparation methodology. The study demonstrates that the PCR described here is a rapid, sensitive, and specific method for the identification of M. pneumoniae and was helpful for the detection and monitoring of the outbreak.
Databáze: MEDLINE