Page 75 - MNUmicrobiology practical 2025
P. 75
General Microbiology & Immunology (PM 401) second level Semester 4 2024/2025
Results and interpretation
• Acid fast bacteria: They appear red colored, rod shaped and can occur singly
or in small groups.
• Non-acid fast: They appear blue colored .
Acid-fast stain showing negative Acid-fast stain showing positive
(s. aureus) results (tuberculosis) results
You can watch this video for acid fast staining procedure
https://www.youtube.com/watch?v=RDXtxa-mee4
General Microbiology & Immunology (PM 401) Practical note Page 64
