Other ways of saying illness
a serious illness that usually lasts a long time, often one that affects a particular part of the body: tropical diseases
♦ She has a rare lung disease.
an illness that is caused by bacteria
and that does not usually last a long time: He was off work with a throat infection.
a very small germ
that causes illness, or an illness caused by these things: The virus is highly contagious.
♦ She has a virus.
an illness or medical problem that affects someone for a long time: a serious heart condition
a situation in which a particular part of someone's body does not operate normally, often causing illness for a long period of time: a stomach/heart/liver disorder
a minor illness that may be painful or uncomfortable: He was complaining about his various ailments.
an illness caused by a virus or bacteria that is not serious and that does not usually last a long time: a stomach bug