Looking at the leading causes of death in low and high-income countries, which causes would be classified as communicable, or infectious, diseases?

Communicable and infectious diseases are those where they can spread from one person to another, from one social group to another. There are many communicable diseases (an example being measles which has made a comeback in the US due to parents not vaccinating their children). 

To check their medical records to see if they have had chicken pox before, if they haven’t, monitor their temperature, drink plenty of fluids, and stay away from small children and those who haven’t been exposed to chicken pox during the incubation period.