Which of the following is incorrect about controllable risk factors of infection?

• A. The risk of infection from any pathogens depends on the immune strength of an individual.
• B. Physical activity decreases the risk of severe illness from infections.
• C. Balanced nutrition helps maintain gut microbiome and reduces the risk of infection.
• D. Poor personal hygiene only increases the risk of infections for people with weak immune system.

Answer: (D)

Verified step by step guidance

1. Step 1: Understand what controllable risk factors of infection are. These are factors that individuals can change or manage to reduce their risk of getting infections, such as personal hygiene, nutrition, and physical activity.
2. Step 2: Review each statement carefully to determine if it correctly describes a controllable risk factor or its effect on infection risk.
3. Step 3: Analyze the statement 'Poor personal hygiene only increases the risk of infections for people with weak immune system.' Consider whether poor hygiene affects everyone or only those with weak immune systems.
4. Step 4: Recall that poor personal hygiene increases the risk of infections for all individuals, regardless of immune strength, because it allows pathogens to enter the body more easily.
5. Step 5: Conclude that the incorrect statement is the one claiming poor hygiene only affects people with weak immune systems, as this is not true; poor hygiene is a risk factor for everyone.