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

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 …

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 …

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 …

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 …

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 more than a …

Oct 21, 2025 · The virus that causes COVID-19 can infect some pets. Cats, dogs, hamsters and ferrets have caught this coronavirus and had symptoms. It's rare for a person to get COVID-19 …

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

Dec 16, 2025 · Staph infections can range from minor skin problems to life-threatening illness. For example, endocarditis, a serious infection of the inner lining of your heart (endocardium) can …