Influenza (flu) - Symptoms and causes - Mayo Clinic
2025年1月7日 · Symptoms of the flu such as a sore throat and a runny or stuffy nose are common. You may also get these symptoms with other illness such as a cold. But colds tend to start slowly, and the flu tends to come on quickly, within two or three days after you come in contact with the virus.
Influenza (flu) - Diagnosis and treatment - Mayo Clinic
2025年1月7日 · To diagnose the flu, also called influenza, your healthcare professional does a physical exam, looks for symptoms of flu and possibly orders a test that detects flu viruses. The viruses that cause flu spread at high levels during certain times of the year in the Northern and Southern hemispheres.
What to do if you get a respiratory infection: A Mayo Clinic …
2024年12月30日 · Flu symptoms include sore throat, runny or stuffy nose, fever, body aches and fatigue. These symptoms may overlap with other illnesses, like the common cold, but key differences exist. Colds generally develop gradually, while flu symptoms typically appear suddenly within two or three days of exposure to the virus.
Viral gastroenteritis (stomach flu) - Diagnosis & treatment - Mayo …
2022年1月18日 · Your doctor will likely diagnose viral gastroenteritis (stomach flu) based on symptoms, a physical exam and sometimes on the presence of similar cases in your community. A rapid stool test can detect rotavirus or norovirus, but there are no quick tests for other viruses that cause gastroenteritis.
Bird flu (avian influenza) - Diagnosis and treatment - Mayo Clinic
2024年6月8日 · Flu viruses in other animals, such as birds, may be a risk to people. Learn more about the symptoms, causes, prevention and treatment for bird flu in people.
Flu symptoms: Should I see my doctor? - Mayo Clinic
Common symptoms of the flu often include a fever but not always, as well as headache, aching muscles, and chills and sweats. Other symptoms include: Dry, persistent cough.
H1N1 flu (swine flu) - Diagnosis and treatment - Mayo Clinic
2023年3月23日 · Your health care provider may do a physical exam to look for symptoms of influenza, including H1N1 flu, often called swine flu. Or the provider may review your symptoms with you over the phone. The provider may order a test that finds influenza viruses such as H1N1.
COVID-19 vs. flu: Similarities and differences - Mayo Clinic
2023年7月22日 · COVID-19 and the flu have several differences, including different causes, complications and treatments. COVID-19 and the flu also spread differently, have different severity levels and a few different symptoms, and can be prevented by different vaccines.
Viral gastroenteritis (stomach flu) - Symptoms & causes - Mayo …
Viral gastroenteritis (stomach flu) - Symptoms & causes - Mayo Clinic
Bird flu (avian influenza) - Symptoms and causes - Mayo Clinic
2024年6月8日 · Bird flu symptoms can be mild to serious in a person. Symptoms typically show up within seven days of contact with the virus but can take as long as two weeks. A person can get infected from direct contact with an infected animal, or the bedding or stool of the animal.