Mar 23, 2023 · 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 often called …

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 …

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

Jun 8, 2024 · Causes Influenza is caused by viruses that infect the cells that line the nose, throat and lungs. Flu virus particles spread through breath, saliva, mucus or stool. Bird flu in humans …

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

Malaria spreads when a mosquito becomes infected with the disease after biting an infected person, and the infected mosquito then bites a noninfected person. The malaria parasites …

Jul 24, 2025 · Ascariasis symptoms depend on the amount of roundworms in your body, which organs are infected and your immune system health. Most people have no symptoms at all. …

May 15, 2024 · Learn about symptoms, treatment and prevention of this common infection among older adults that causes nails to discolor and crumble.

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 …

Apr 25, 2025 · Swollen lymph nodes most often happen because of infection from bacteria or viruses. Rarely, cancer causes swollen lymph nodes. The lymph nodes, also called lymph …