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. Many infectious diseases, such as measles and chickenpox, can be prevented by vaccines.
Infection: Bacterial or viral? - Mayo Clinic
2023年2月4日 · A careful review of your symptoms and lab tests can help your health care provider find the right treatment. If your provider gives you a medicine, either an antibiotic or an antiviral, take it as directed. To prevent infections, get vaccinated for viral and bacterial illnesses on schedule. Also follow these tips to prevent illness:
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.
Coronavirus disease 2019 (COVID-19) - Symptoms and causes
Digestive symptoms such as upset stomach, vomiting or loose stools, called diarrhea. Pain, such as headaches and body or muscle aches. Fever or chills. Cold-like symptoms such as congestion, runny nose or sore throat. People may only have a few symptoms or none. People who have no symptoms but test positive for COVID-19 are called
Sore throat - Symptoms & causes - Mayo Clinic
2021年6月10日 · HIV infection. A sore throat and other flu-like symptoms sometimes appear early after someone is infected with HIV. Also, someone who is HIV-positive might have a chronic or recurring sore throat due to a fungal infection called oral thrush or due to a viral infection called cytomegalovirus (CMV), which can be serious in people with compromised ...
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.
Common cold - Symptoms and causes - Mayo Clinic
2023年5月24日 · Middle ear infection. This is the swelling and build-up of fluids in the space behind the eardrum. It may be caused by a virus or bacteria. Typical signs and symptoms include earaches or the return of a fever following a common cold. Asthma. A cold can trigger wheezing, even in people who don't have asthma.
Influenza (flu) - Symptoms and causes - Mayo Clinic
2025年1月7日 · Getting another infection can be a complication of getting the flu. That includes illnesses such as croup and sinus or ear infections. Lung infections are another complication. Infection of the heart muscle or heart lining may happen after getting the flu. And in some cases, people may have infection of the central nervous system.
Norovirus infection - Symptoms & causes - Mayo Clinic
2022年3月4日 · Norovirus infection symptoms usually last 1 to 3 days. Most people recover completely without treatment. However, for some people — especially young children, older adults and people with other medical conditions — vomiting and diarrhea can be severely dehydrating and require medical attention.
Acute sinusitis - Symptoms and causes - Mayo Clinic
2023年8月29日 · Symptoms that last more than a week. Symptoms that get worse after seeming to get better. A fever that lasts. A history of repeated or chronic sinusitis. See a health care provider immediately if you have symptoms that might mean a serious infection: Pain, swelling or redness around the eyes. High fever. Confusion. Double vision or other vision ...