Gonorrhea bacteria can infect the urethra, rectum, female reproductive tract, mouth, throat or eyes. Gonorrhea is most commonly spread during vaginal, oral or anal sexual activity. But …

Mar 23, 2023 · Overview The H1N1 flu, sometimes called swine flu, is a type of influenza A virus. During the 2009-10 flu season, a new H1N1 virus began causing illness in humans. It was …

Feb 9, 2023 · Learn about the symptoms, causes, treatment, and prevention of this infectious disease transmitted to humans through mosquito bites.

Jan 23, 2021 · Dr. Andrew Badley discussing if you can infect someone after receiving the COVID-19 vaccine.

Mar 6, 2025 · Chagas disease can cause a sudden, brief illness. This type of illness is known as acute. Or it can become a long-lasting, chronic condition. Both stages can be free of …

Feb 19, 2025 · Human metapneumovirus, also called HMPV, is a virus that can infect the nose, throat and lungs, which are part of the respiratory system. An HMPV infection can make you …

Jul 24, 2025 · Ascariasis (as-kuh-RIE-uh-sis) is a type of roundworm infection. These worms are parasites that use the body as a host to mature from eggs to adult worms. Adult worms can be …

Jun 20, 2024 · The basic unit of communication in the nervous system is the nerve cell (neuron). Each nerve cell consists of the cell body, which includes the nucleus, a major branching fiber …

Oct 4, 2023 · Respiratory syncytial virus can infect anyone. But premature babies and young infants, as well as older adults, with heart or lung disease or a weakened immune system are …

Understand how this infectious disease spreads, what you can do to prevent it and how it's treated.