Quadruplex real-time quantitative PCR assay for the detection of pathogens related to late-onset ventilator-associated pneumonia: a preliminary report.

A quadruplex real-time (RT) qPCR assay for the detection and quantification in 4h of Staphylococcusaureus, Pseudomonasaeruginosa, Acinetobacterbaumannii and Stenotrophomonasmaltophilia directly from bronchoalveolar lavage specimens was developed. The specificity of the assay was 100% for all four species.