Poliomyelitis is commonly called polio. It is an infectious disease. It is caused by 3 types of poliovirus. Polio is easily spread from person to person. The poliovirus is a virus that causes paralysis. But most people who are infected with polio have no symptoms and a few have mild symptoms.

Detailed information on eye care, including anatomy of the eye, eye care specialists, eye examinations, correcting or improving vision, low vision, eye disorders, and eye safety

Detailed information on diphtheria, including symptoms, transmission, treatment, and prevention

AIDS is caused by the human immunodeficiency virus, which kills or impairs cells of the immune system and progressively destroys the body's ability to fight infections and certain cancers.

The only safe sex is no sex, most doctors say. But certain precautions and safe behaviors can reduce a person's risk of contracting a sexually transmitted disease.

Vaginal bleeding and discharge are a normal part of your menstrual cycle. If you notice anything different or unusual, talk with your health care provider.

Grief moves in and out of stages from disbelief and denial, to anger and guilt, to finding a source of comfort, to eventually adjusting to the loss.

A caregiver provides assistance in meeting the daily needs of another person.

Learn about substance use disorder and dependence, including causes, symptoms, diagnosis, and treatment.

Vulvitis is inflammation of the soft folds of skin outside the vagina.