noun

an old word for illness in which you have a fever, feel cold, and shiver (=shake slightly)

noun

an illness caused by the small amount of oxygen in the air when you are very high up, for example on a mountain

noun

a serious illness affecting your brain that makes it difficult for you to remember things and becomes worse as time passes. Alzheimer’s disease is often simply called Alzheimer’s.

noun

a serious illness that makes you want to stop eating and that mainly affects young women. Its full medical name is anorexia nervosa.

noun

a very serious illness affecting cows and sheep and sometimes people. Anthrax is sometimes used in biological warfare.

noun

an illness in which your appendix becomes infected and has to be removed in a medical operation

noun

an illness in some hot countries that affects the nerves, caused by lack of vitamins (=chemicals needed for health) in food

noun

a serious illness caused by an infection in your blood

noun

a serious illness caused by eating preserved food that contains harmful bacteria. It often causes death.

noun

an illness affecting your bronchial tubes in which you cough and find breathing difficult

noun

a serious illness in which a person makes himself or herself vomit after eating in order to control his or her weight

noun

a minor illness like a cold

noun

a minor illness that blocks your nose and makes you cough

noun

a minor illness that makes you sneeze and cough. A common cold is usually just called a cold.

noun

an illness in which the inside of your eyelid becomes red and swollen

noun

an illness in which you cough often and sometimes your throat and lungs hurt

noun

a children’s illness that makes you cough and makes it difficult for you to breathe

noun

a minor illness that mainly affects women and makes it painful to urinate (=get rid of your body’s liquid waste)

noun

a very serious illness that you get if a mosquito infected with a particular virus bites you. Dengue fever causes fever, headaches, and pain in the joints.

the American spelling of diarrhoea

noun

an illness in which you pass solid waste from your body too often and in a liquid form

noun

a very serious illness affecting your lungs that makes it difficult to breathe

noun

a painful medical condition that affects your intestines and causes diarrhoea

noun

an illness affecting your stomach, caused by eating food that contains harmful bacteria

noun

an illness in which the inner layer of your stomach swells and becomes painful

noun

a short painful illness affecting your stomach and intestines that is caused by bacteria in food or a virus and that makes you go to the toilet frequently

noun

a serious illness that prevents your blood from clotting (=becoming thick) when it should, for example when you cut yourself

the American spelling of haemophilia

noun

an illness affecting the liver that makes the skin and the white part of the eyes become yellow

noun

an illness affecting your throat and larynx, which become red and swollen, making it difficult for you to talk

noun

a serious illness caused by being bitten by a mosquito, usually in a hot country

noun

an illness affecting a woman’s breast that makes it sore and swollen

noun

myalgic encephalomyelitis: chronic fatigue syndrome

noun

a serious illness that affects the outer part of the brain

noun

a serious illness in which the part of a person’s nervous system that controls movement is gradually destroyed, causing them to lose control over their muscles

noun

multiple sclerosis

noun

a serious illness affecting the nerve cells of the brain and spine that gradually makes it difficult for someone to move, speak, or see. Multiple sclerosis is often simply called MS.

noun

a serious illness in which your muscles gradually become weaker

noun

swelling in a part of your body because it contains too much liquid

noun

a serious illness that affects your nerves and makes you shake and move slowly. It mainly affects older people. Parkinson’s disease is often simply called Parkinson’s.

noun

a serious illness in which the part covering your stomach becomes infected and swollen

noun

an illness in which your throat becomes sore and swollen. A less technical word is sore throat.

noun

an illness in which your veins (=small tubes that carry blood in your body) become swollen

noun

a serious illness that affects your lungs, making it difficult for you to breathe

noun

a serious illness affecting your lungs that makes it difficult for you to breathe

noun

a serious illness caused by receiving too much radiation

noun

an illness that causes a fever and pain in your joints (=where bones are joined)

noun

an illness affecting your joints (=where bones are joined) or muscles so that they swell and become stiff and painful

noun

rheumatoid arthritis

noun

a serious illness that permanently damages your joints (=where bones are joined) by making them swell and become stiff and painful

noun

diarrhoea

noun

seasonal affective disorder

noun

an illness caused by these bacteria

noun

a serious illness that affects your chest and that was first reported in Asia in 2003

noun

an illness caused by not eating enough foods that contain vitamin c (=a natural substance found in fruit and vegetables)

noun

an illness that affects some people during the time of year when there is very little light from the sun and that makes them feel tired and unhappy

noun

an illness in which your blood becomes infected by bacteria. The more usual word is blood poisoning.

noun

an illness affecting the lungs that is caused by breathing dust from particular types of stone

noun

a slight cold

noun

an illness in which your jaw and neck become stiff, caused by bacteria that enter a cut in your skin

noun

an illness in which your tonsils become infected, swollen, and painful

noun

blood poisoning caused by bacteria in the blood and the harmful substances that they produce

the American spelling of toxaemia

noun

a serious illness that can be connected to the use of tampons

noun

diarrhoea

noun

a serious tropical illness caused by a mosquito in which you have a fever, you bleed a lot, and your skin may look yellow