What disinfection solution is advised for surfaces to prevent the spread of Salmonella?

• A. 70% alcohol
• B. Soap and water
• C. Hydrogen peroxide
• D. 10% bleach solution

Answer: (D)

Disinfection for Salmonella on surfaces relies on a disinfectant that reliably inactivates the bacteria on common care surfaces. A 10% bleach solution does this effectively, provided the surface stays wet for a short contact time. It’s a broad-spectrum option that works well on non-porous surfaces and is widely recommended for cleaning areas contaminated with Salmonella.

Before applying the bleach, remove visible dirt with soap and water because organic matter can shield bacteria and reduce disinfection efficacy. Use a freshly prepared solution, apply it so the surface remains wet for the recommended time, and then allow it to air-dry or rinse as appropriate. Avoid mixing bleach with ammonia or acids, and wear gloves during use.

The other options are less reliable in typical settings: alcohol can be less effective against Salmonella in the presence of organic material; soap and water clean but do not disinfect; hydrogen peroxide may disinfect but isn’t as consistently dependable in routine environments.