Question

which one of the following food contaminations is best prevented by cooking to safe temperatures? clostridium botulinum shiga toxin-producing escherichia coli norovirus hepatitis a

Explanation:

1. Analyze each option:

• Clostridium Botulinum: Its spores can survive but the toxin is destroyed by heat, and the bacteria can be killed by proper cooking. However, some other options need consideration.
• Shiga toxin - producing Escherichia coli: Many strains like E. coli O157:H7 are killed by cooking to safe temperatures (e.g., 160°F or 71°C) as they are bacteria susceptible to heat.
• Norovirus: It is a virus that is more resistant to heat and is often spread via contaminated hands, surfaces, etc., and not mainly prevented by cooking.
• Hepatitis A: Also a virus, and while heat can inactivate it, it is more associated with contaminated water, food handlers, etc., and cooking is not the primary prevention method compared to bacterial pathogens.

1. Among bacteria (Shiga toxin - producing E. coli and Clostridium Botulinum) and viruses (Norovirus, Hepatitis A), bacteria are generally more susceptible to being killed by cooking. Shiga toxin - producing E. coli is a common food - borne bacterial pathogen where cooking to safe temperatures is a key prevention method (e.g., in ground beef, which is a common source of E. coli contamination, cooking to 160°F kills the bacteria). Clostridium Botulinum is more associated with improperly canned foods, and while cooking can help, the main prevention for it is proper canning. So Shiga toxin - producing Escherichia coli is more commonly associated with food that is cooked (like ground beef, raw vegetables that can be cooked) and cooking to safe temperatures is a primary prevention method for it.

Answer:

Shiga toxin - producing Escherichia coli