## **Core Concept**
The question tests knowledge of recommended vaccinations for healthcare workers. Healthcare workers are at increased risk of exposure to various infectious diseases, making vaccination crucial for their protection. The vaccinations help prevent the spread of diseases and protect both the healthcare workers and their patients.

## **Why the Correct Answer is Right**
The correct answer, **Hepatitis B vaccine**, is recommended for all healthcare workers because Hepatitis B is a significant occupational risk. The virus can be transmitted through blood and other body fluids, making healthcare workers highly susceptible. The Hepatitis B vaccine provides immunity against this virus, significantly reducing the risk of infection.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and does not provide a valid vaccine.
- **Option B:** This option is also blank and does not provide a valid vaccine.
- **Option D:** This option is blank as well and does not offer a valid vaccine.

## **Clinical Pearl / High-Yield Fact**
A crucial point to remember is that the **Hepatitis B vaccine** is not only recommended for healthcare workers but also for individuals with certain medical conditions and those at high risk of exposure. The vaccine series consists of three doses, typically administered over a period of 6 months, and booster doses may be recommended based on individual risk factors.

## **Correct Answer:** . **Hepatitis B**