What are public health benefits if vaccination?

Brian said that when you get your body broken such as a arm or leg. it means your bones break to pieces and must do surgery or get a cast to fix it.is it true or false?

The 1.5 mile run test and the 12 minute swim test are considered as what kind of test ?

Match each nutrition monitoring survey to its description. csfii nfcs nhanes what we eat in america