Question

List 5 examples of BSL-2 agents.

a) Clostridium tetani, Bacillus anthracis, Yersinia pestis, Streptococcus pneumoniae, Salmonella enterica
b) Escherichia coli, Staphylococcus aureus, Mycobacterium tuberculosis, Enterococcus faecalis, Shigella flexneri
c) Salmonella enterica, Streptococcus agalactiae, Klebsiella pneumoniae, Corynebacterium diphtheriae, Pseudomonas aeruginosa
d) Mycobacterium tuberculosis, Vibrio cholerae, Clostridium difficile, Neisseria gonorrhoeae, Enterococcus faecalis

Answer 1

Option A).BSL-2 agents include Clostridium tetani, Bacillus anthracis, Yersinia pestis, Streptococcus pneumoniae, and Salmonella enterica. These agents require additional precautions in BSL-2 laboratories.

Step-by-step explanation:

BSL-2 agents are classified as moderate risk to laboratory workers and the community. Some examples of BSL-2 agents include:

1. Clostridium tetani
2. Bacillus anthracis
3. Yersinia pestis
4. Streptococcus pneumoniae
5. Salmonella enterica

These agents require additional precautions in BSL-2 laboratories, such as restricted access, required personal protective equipment (PPE), and the use of biological safety cabinets for procedures that may disperse agents through the air. Microorganisms classified as BSL-2 (Biosafety Level 2) agents present a moderate risk to both the environment and human health. Specific requirements for BSL-2 laboratories include restricted access, the use of biological safety cabinets, personal protective equipment (PPE), and autoclaves for sterilization. When working with BSL-2 pathogens, safety precautions such as wearing lab coats, gloves, and face shields, as well as appropriate decontamination protocols for spills and biohazardous material disposal, are crucial.