What’s New at the Microbiology Lab 

The laboratory recently acquired a GeneXpert Infinity to perform Real-Time PCR testing for the C. difficile toxin B gene and for pre-surgical screening for S. aureus nasal carriage. This system uses self-contained cartridges where the PCR amplification and detection occurs. After minimal sample processing the specimen is placed into the cartridge and placed robotically into the testing chamber. The test takes approximately 52 minutes for a negative and 40 to 52 minutes for a positive test result. This hands-free, self-contained operation allows this instrument to be used for STAT testing as no batching of specimens is required.