Monthly injections of palivizumab, a RSV-specific monoclonal antibody, initiated just before the onset of the RSV season confers some protection from severe RSV disease. Palivizumab is indicated for some infants under 2 years old with all the following EXCEPT

Correct Answer: A

Rationale: Palivizumab is for high-risk infants (B, C, D, E). Asthma (A) alone isn’t an indication, per AAP guidelines.

Correct Answer: C

Rationale: Salmonella (C) colitis often has fewer fecal leukocytes compared to Shigella (A) or Campylobacter (B), per pathology.

Correct Answer: B

Rationale: HCV (B) is the most prevalent hepatitis co-infection in HIV patients, per epidemiology.

Correct Answer: B

Rationale: UTI diagnosis in infants requires ≥50,000 CFU/mL (B) of a single pathogen with pyuria, per AAP guidelines.

Correct Answer: B

Rationale: The knee (B) is the most common site of septic arthritis in children, per orthopedic stats.