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BSL-1
🔹 BSL-1 — This is correct because non-pathogenic strains of E. coli (such as E. coli K-12) pose minimal potential hazard to laboratory personnel and the environment, so standard microbiological practices without special containment are sufficient—
🔹 BSL-2 — This is incorrect because it is used for moderate-risk pathogens that can cause disease in humans (e.g., pathogenic E. coli, Salmonella), requiring limited access and biosafety cabinets—
🔹 BSL-3 — This is incorrect because it is reserved for pathogens that can cause serious or potentially lethal diseases through inhalation, such as Mycobacterium tuberculosis—
🔹 BSL-4 — This is incorrect because it is used for the most dangerous, high-risk agents (e.g., Ebola virus) that have no available treatment or vaccine
This question is from Lab Practical 1 QUIZ WEEK 1-3 -2025 which contains 38 questions.
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