1. very serious diseases caused by bacteria or a virus, and related to breathing or your lungs, e.g. pneumonia, avian influenza, (bird flu), swine flu
2. brain disease caused when the blood supply to the brain is disrupted in some way, e.g. stroke
3. diseases of the heart, e.g. heart attack, angina, chest pain
4. diseases in which waste from the bowels is watery, e.g. cholera
5. pulmonary disease (as emphysema or chronic bronchitis) that is characterized by chronic typically irreversible airway obstruction resulting in a slowed rate of exhalation
6. a disease that affects the brain, especially of old people, and that gradually makes it difficult to move, talk, or remember things (e.g. dementia)
7. a serious infectious disease that affects many parts of your body, especially your lungs
8. a serious illness caused by being bitten by a mosquito, usually in a hot country
9. an acute contagious disease that is caused by a morbillivirus and is marked especially by an eruption of distinct red circular spots
10. a serious disease in which the body cannot properly control the amount of sugar in your blood because it does not have enough insulin
