Acid fast bacilli

Ziehl-Neelsen Technique-AFB Staining

Last updated on June 11th, 2021Ziehl-Neelsen (ZN) method of acid-fast staining technique is used to stain Mycobacterium species including M. tuberculosis, M. ulcerans, and M. leprae and nontuberculous mycobacteria (NTM).  Detection of acid-fast bacilli (AFB) […]

Biochemical Tests

CAMP Test: Principle, Procedure, Results

Last updated on June 18th, 2021CAMP test is used for the presumptive identification of Group B beta-hemolytic streptococci, Streptococcus agalactiae. CAMP test is effective for the “prompt and reliable” identification of Streptococcus agalactiae in the […]


Trans-Isolate (T-I) Medium

Last updated on June 4th, 2021Tran-isolate medium is used to inoculate and transport CSF sample, If the CSF cannot be transported to a microbiology laboratory immediately (within 1 hour from the time of collection) for […]