Rotavirus vaccine is –
**Core Concept**
The rotavirus vaccine is a live, attenuated vaccine used to protect against **rotavirus infections**, which are a common cause of **gastroenteritis** in children. The vaccine works by inducing **immunity** against the rotavirus.
**Why the Correct Answer is Right**
The correct answer is not provided, however, the rotavirus vaccine is typically administered orally, as a live, attenuated vaccine, to mimic the natural infection and induce a strong **mucosal immune response**. This helps to prevent future infections by the same virus.
**Why Each Wrong Option is Incorrect**
**Option A:** Without the correct answer provided, it's difficult to assess each option.
**Option B:** Similarly, without the context, it's challenging to determine the incorrectness of this option.
**Option C:** This option would be incorrect if it suggested a different route of administration or type of vaccine.
**Option D:** This option would be incorrect if it proposed an alternative, non-oral route for the vaccine.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that the rotavirus vaccine is given orally to infants in multiple doses to ensure **long-term immunity** against rotavirus infections, which can cause severe **diarrhea** and **dehydration**.
**Correct Answer:** Not provided in the question context.