A bacterium, virus, or other microorganism that can cause disease.

It is the misguided reaction to foreignsubstances by the immune system

the substances that trigger allergy

people that are prone to allergies

is an inflammation of the tissue layers (membranes) that cover the surface of the eyeball and the undersurface of the eyelid.

are skin reactions that appear as itchy swellings and can occur on any part of the body.

is an allergic rash that is usually caused by skin contact with an allergen

is the most common of the allergic diseases and is characterized by seasonal nasalsymptoms that are due to pollens.

is a life-threatening reaction that can affect a number of organs at the same time.

is a chronic lung disorder that causes airways (the tubes that carry air into and out of the lungs) to become inflamed, which means that it swells and produce lots of thick mucus.

is the disease of the heart and blood vessels. These include heart diseases and vascular diseases.

is a group of vascular diseases characterized by thickening and loss of elasticity of arterial walls.

is an abnormality in the heart’s structure that you’re born with.

is the inability of the heart to keep up with the demands on it, with failure of the heart to pump blood with normal efficiency

·is a condition in which the heart beats with an irregular or abnormal rhythm.

·active or inactive disease of the heart that results from rheumatic fever and that is characterized by reduced functional capacity of the heart caused by inflammatory changes in the myocardium or scarring of the valves. 

occurs when blood pressure is higher than normal.

is a condition when a clot blocks a small blood vessel in the brain, thus brain cells die from lack of oxygen.

·is an excessive localized enlargement of an artery caused by a weakening of the artery wall.

is caused by abnormal cells growing without control. As these abnormal cells grow, they form in masses called tumors.

Also known as bowel cancer, colon cancer ,or rectal cancer, is the development of cancer from the colon or rectum.

It is known as lung carcinoma, is a malignant lung tumor characterized by uncontrolled cell growth in tissues of the lungs.

The abnormal growth of skin cells most often develops on skin exposed to the sun.

is a malignant (cancerous) tumor that usually begins in the outer part of the prostate gland .

is a type of cancer that occurs in the cells of the cervix – the lower part of the uterus that connects to the vagina. In almost all cases it is a result of sexually transmitted disease.

Type of blood cancer that affects your bone marrow, which makes blood.

A cancer that develops from breasttissue.

masses of cells that are not cancerous

masses of cells that are cancerous and spread to the other parts of the body by moving along the blood vessels or through the lymph system.

is a disease that prevents the body from converting food into energy.

•the hormone produced in the pancreas, regulates the level of glucose in the blood.

•refers to the inflammation of joints. It usually occurs during old age.

is an autoimmune disease which happens when the body’s immune system attacks healthy cells by mistake.

is a disease of older people. It results from  the wear and tear of joints especially those of the hands, hips, knees, and spine.

•is medical condition in which the kidneys fail to adequately filter waste products from the blood.

Diseases that are not caused by pathogens or disease-causing organisms such as bacteria or viruses, but rather, by how people live, by the conditions with which they are born or by the hazards around them.