A 2-year-old child with acute watery diarrhea and vomiting is diagnosed with gastroenteritis. Stool antigen test is positive for Rotavirus. Which vaccine characteristic is correct?

Correct option is B

Rotavirus vaccine is a live-attenuated oral vaccine, given at 6, 10, and 14 weeks to prevent viral gastroenteritis in infants.
Explanation of options: (a) ✘ Injectable killed rotavirus vaccine does not exist. (b) ✔ Correct; oral, live-attenuated vaccine is standard for rotavirus prevention. (c) ✘ No toxoid formulation exists for rotavirus; toxoids are for diphtheria, tetanus. (d) ✘ Oral killed vaccine is not used; also, it must be given before 1 year, not after 2 years.