an illness caused by an infection
a disease in your body that is caused by bacteria or a virus
to cover, reach, or have an effect on a big area
the period between getting a virus and showing the first symptoms
to stay away from someone or something
an extremely small piece of organic material that causes disease
a feeling of illness or physical change, e.g. a sore throat
a small drop of liquid
the use of drugs to cure a person of an illness
relating to breathting