Infection: Bacterial or viral? - Mayo Clinic
2023年2月4日 · To prevent infections, get vaccinated for viral and bacterial illnesses on schedule. Also follow these tips to prevent illness: Wash your hands with soap and water. Keep your hands away from the face. Stay away from people who are sick and avoid others if you are sick. Cover your coughs and sneezes. Learn how to identify an infection.
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2, also called SARS-CoV-2. The coronavirus spreads mainly from person to person, even from someone who is infected but has no symptoms. When people with COVID-19 cough, sneeze, breathe, sing or talk, their breath may be infected with the COVID-19 virus.
Infectious diseases - Symptoms & causes - Mayo Clinic
2022年2月18日 · Signs and symptoms vary depending on the organism causing the infection, but often include fever and fatigue. Mild infections may respond to rest and home remedies, while some life-threatening infections may need hospitalization.
Viral gastroenteritis (stomach flu) - Symptoms & causes - Mayo …
2022年1月18日 · Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. The most common way to develop viral gastroenteritis — often called stomach flu — is through contact with an infected person or by consuming contaminated food or water.
Influenza (flu) - Symptoms and causes - Mayo Clinic
2025年1月7日 · Controlling the spread of infection. The influenza vaccine isn't 100% effective. So it's important to take steps to lower the spread of infection, including: Wash your hands. Wash your hands well and often with soap and water for at least 20 seconds. If soap and water aren't available, use an alcohol-based hand sanitizer with at least 60% alcohol.
HPV infection - Symptoms & causes - Mayo Clinic
2021年10月12日 · HPV infection is a viral infection that commonly causes skin or mucous membrane growths (warts). There are more than 100 varieties of human papillomavirus (HPV). Some types of human papillomavirus (HPV) infection cause warts, and some can cause different types of cancer. Most HPV infections don't lead to cancer.
Shingles - Symptoms & causes - Mayo Clinic
2022年8月20日 · Shingles is a viral infection that causes a painful rash. Shingles can occur anywhere on your body. It typically looks like a single stripe of blisters that wraps around the left side or the right side of your torso. Shingles is caused by the varicella-zoster virus — the same virus that causes chickenpox.
Respiratory syncytial virus (RSV) - Symptoms & causes - Mayo Clinic
2023年10月4日 · Middle ear infection. If germs enter the space behind the eardrum, you can get a middle ear infection (otitis media). This happens most frequently in babies and young children. Asthma. There may be a link between severe RSV in children and the chance of developing asthma later in life. Repeated infections.
Bell's palsy - Symptoms and causes - Mayo Clinic
2024年3月15日 · The nerve that controls facial muscles passes through a narrow corridor of bone on its way to the face. In Bell's palsy, that nerve becomes inflamed and swollen — usually related to a viral infection. Besides affecting facial muscles, the nerve affects tears, saliva, taste and a small bone in the middle of the ear. Risk factors
Parvovirus infection - Symptoms & causes - Mayo Clinic
2022年4月19日 · Parvovirus infection can cause serious complications for people with anemia. Anemia is a condition in which cells that carry oxygen to all the parts of your body (red blood cells) are used up faster than your bone marrow can replace them. Parvovirus infection in people with anemia may stop the production of red blood cells and cause an anemia ...