Pelvic inflammatory disease (PID) is an infection of the uterus, ovaries, and other female reproductive organs. It is the most common preventable cause of infertility in the U.S. READ MORE

Pink Eye (conjunctivitis) is inflammation of the outer layer of the eye and inside of the eyelid. Read about the symptoms, causes, and treatment. READ MORE

Pinworms are small parasites that spread easily. The eggs can live on household surfaces for up to 2 weeks. The infection is more common in children. READ MORE

Plague is an infection caused by bacteria found mainly in rats and in the fleas that feed on them. There are three forms of plague. READ MORE

Pneumococcal infections can be mild or severe. The most common types of infections are Meningitis, Sepsis, Pneumonia, and ear and sinus infections READ MORE

Pheumocystis Infections are caused by a fungus in the lungs. The most common is pneumocystis pneumonia. Read about the first signs of this infection. READ MORE

Pneumonia is an infection in one or both of the lungs. Symptoms of pneumonia vary to mild to severe. Read about the signs of pneumonia. READ MORE

Poliovirus is very contagious. Get the facts on polio and post-polio syndrome. Take precautions when travelling and learn about the polio vaccine. READ MORE

Anyone who had COVID-19 can have ongoing symptoms. Learn about post-COVID conditions (long COVID), including symptoms, diagnosis, treatments, and prevention. READ MORE

Pubic lice, or crabs, are tiny parasitic insects. They usually live in the pubic area, and most often spread through sexual contact. Find out how to tell if you have them, and how to treat them. READ MORE

Rabies is a deadly animal disease caused by a virus. People get it from the bite of an infected animal. Learn about treatments. READ MORE

Respiratory syncytial virus (RSV) causes cold-like symptoms in adults and healthy children but can cause serious problems in babies. Read more. READ MORE