2025年3月3日 · Beginning in late January and extending through February 2025, flu hospitalizations have been higher than any other week since before 2009. Most flu cases appear to be from influenza A strains, with a split between influenza A/H3N2 and influenza A/H1N1. These are two different subtypes of the influenza A virus.

2024年9月18日 · Understanding the stages of the flu—including the signs and symptoms that are likely to develop—can help you determine if you are recovering as you should. It can also help you figure out if you are still contagious and able to infect others. Day 0 …

2024年7月11日 · Eye flu, or conjunctivitis, is a common eye infection that can cause redness, itching, and discharge. Learn about symptoms, causes, and treatment of eye flu.

2025年1月22日 · Influenza A and influenza B are the main strains of flu virus. Type A causes more cases, more severe illness and infects many species. Type B only infects humans.

There are four types of influenza viruses: A, B, C, and D. Influenza A and B viruses cause seasonal epidemics of disease in people (known as flu season) almost every winter in the United States. Influenza A viruses are the only influenza viruses known to cause flu pandemics (i.e., global epidemics of flu disease).

Flu can cause mild to severe illness, and at times can lead to death. Flu symptoms usually come on suddenly. People who have flu often feel some or all of these signs and symptoms: fever* or feeling feverish/chills. cough. sore throat. runny or stuffy nose. muscle or body aches. headaches. fatigue (tiredness)

2025年1月23日 · Flu, or influenza, is a contagious respiratory infection caused by various flu viruses. Symptoms include muscle aches and soreness, headache, and fever. These symptoms often go away within four...

Influenza (flu) is a contagious respiratory illness caused by influenza viruses that infect the nose, throat, and lungs. Learn about flu, including symptoms, prevention methods, and treatment options.

2025年3月22日 · Viral conjunctivitis, commonly known as “eye flu,” is a contagious infection that causes redness, irritation, and discomfort in the eyes. It spreads easily during the monsoon season as bacteria and viruses can enter the eyes, leading to various infections.

2022年10月11日 · The flu is an illness you get from the influenza virus. It causes symptoms like head and body aches, sore throat, fever and respiratory symptoms, which can be severe. Flu is most common in winter months, when many people can get sick at once (an epidemic).