It is a common lung infection caused by bacteria or viruses.

An infectious viral disease causing fever and a red rash on the skin, typically occurring in childhood.

It is an upper respiratory infection caused by a virus.

It is a warning sign of illness which is a body's response to infection.

It is the inflammation of the tonsils caused by viral or bacterial infection.

It is a viral infection of the upper air passages. Virus lives on the linings of the nose and throat.

It is an inflammation of the appendix.

It is a respiratory condition which usually results from an allergic reaction.

It is an infectious disease caused by the varicella-zoster virus which results in a blister-like rash.