Vaccination policy is when a group of people, like the government or a school, decides how and when people should get shots to protect them from diseases. Just like you need to wash your hands to keep them clean, vaccination helps keep your body healthy by protecting you from getting sick.
When someone gets a vaccine shot, it helps the body recognize the germs that could make you sick so it can fight them off. This is super important because some diseases can be very dangerous, or even deadly.
Sometimes people don't want to get vaccines because they think they might get sick from the shot, or because they don't like getting poked with a needle. But scientists and doctors have worked really hard to make sure that the vaccines are safe and effective.
So, vaccination policies help make sure that everyone gets vaccinated if they can, which helps protect everyone from getting sick. It's like when you and all your friends wear helmets when you ride bikes - it's important to protect everyone so everyone can have fun and stay healthy.