Q.89
Given below are two statements
Statement (I) : Biosafety level-3 containment used for handling of Mycobacterium tuberculosis
Statement (II) : Mycobacterium tuberculosisis a zoonotic pathogenic bacteria that can able transfer through aerosol formation
In light of the above statements, choose the most appropriate answer from the options given below.
EXPLANATION
Biosafety in Dairy Laboratories: Biosafety Levels (BSL-1 to BSL-4) & M. tuberculosis Containment
- Statement (I) is True: Mycobacterium tuberculosis is an aerosol-transmitted Risk Group 3 human and zoonotic pathogen. CDC and WHO laboratory biosafety guidelines mandate that manipulation of infectious materials, diagnostic cultures, and animal models must be conducted under Biosafety Level-3 (BSL-3) containment with controlled negative air pressure, directional airflow, and HEPA-filtered exhaust.
- Statement (II) is True: Mycobacterium tuberculosis (and M. bovis) is a zoonotic pathogen capable of transmission between humans and animals via aerosol droplet nuclei ($1\text{--}5\ \mu\text{m}$) generated during coughing or sneezing, which penetrate deeply into the pulmonary alveoli.
- Conclusion: Both Statement (I) and Statement (II) are true (Option 1).
Correct option: (1) Both Statement (I) and Statement (II) are true.
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