Infections in HCFs are different from infections in the general community in that infections in HCFs are:

Correct Answer: D

Rationale: HCF infections are often more costly, have higher morbidity/mortality, and can be harder to diagnose due to resistant organisms, but A is incorrect—most are bacterial, not viral. Thus, E (all except A) is correct.

Correct Answer: D

Rationale: Aprons and gowns are the best barriers against liquid contaminants, protecting large areas of the body.

Correct Answer: D

Rationale: All listed measures—handling, hygiene, lesion-free staff, and refrigeration—prevent food contamination, making E correct.

Correct Answer: D

Rationale: Colonization with MRSA (methicillin-resistant Staphylococcus aureus) means the bacteria are present without necessarily causing infection, so no symptoms may be evident.

Correct Answer: D

Rationale: Alcohol handrub is correct when hands aren't soiled; other options risk contamination or inefficacy.