The rotavirus vaccination schedule may require 2 or 3 doses depending on product. Which option correctly states this?

• A. Initiates in infancy at 2 months and may require 2 or 3 doses depending on product
• B. Requires a single dose at birth
• C. Requires four doses
• D. Is given at 12 months only

Answer: (A)

Rotavirus vaccination is given in infancy and depends on the product used. There are two vaccines with different dosing schedules: one requires two doses, the other three doses. The first dose is given around 2 months of age, and the total number of doses varies by product (2-dose vs 3-dose). It’s also important to complete the series within the recommended timeframe for each product (earlier rather than later in infancy). This is why the statement that vaccination starts in infancy at about 2 months and may require 2 or 3 doses depending on the product is correct.

Why the other ideas don’t fit: it’s not given at birth, there isn’t a four-dose schedule, and it isn’t administered only at 12 months.