Microbiological methods also varied, and may not always be appropriate to the detection and identification of all potentially pathogenic organisms e.g. atypical mycobacteria require longer incubation periods and culture on selective media.

• 所采用的微生物学方法也是五花八门，对监测和识别潜在病源有机体，可能并非总是适合的，例如非典型分支杆菌就要求较长培育期和介质培养基选择。