Infectious Diseases & Immunization MCQs

Pediatrics · 5 free questions with answers & explanations.

1. Under the Universal Immunization Programme (UIP) of India, which vaccine is given at birth along with BCG and OPV-0?
2. A 5-year-old unvaccinated child presents with a 3-day history of fever, cough, coryza, and conjunctivitis. On day 4, you notice tiny white spots with a red base on the buccal mucosa opposite the lower molars, followed by a maculopapular rash starting behind the ears. Which of the following is the most characteristic laboratory finding?
3. A 7-year-old child presents with fever and a skin rash consisting of crops of lesions in different stages — macules, papules, vesicles, and crusted lesions — predominantly on the trunk. The lesions are intensely pruritic. The child received MMR vaccine but not varicella vaccine. Which complication is most feared in immunocompromised children with this infection?
4. A 4-month-old infant is brought with high fever (39.5°C), irritability, and a bulging anterior fontanelle. CSF analysis shows: turbid fluid, WBC 2000 cells/mm3 (90% neutrophils), protein 180 mg/dL, glucose 20 mg/dL (blood glucose 90 mg/dL). Gram stain shows Gram-positive cocci in pairs. Which antibiotic is the drug of choice for this condition?
5. According to the current National Immunization Schedule of India, at what age is the first dose of Measles-Rubella (MR) vaccine administered?