Dec 19, 2025 · Learn more about the symptoms, causes and prevention of this potentially deadly viral infection that attacks the respiratory system.

Oct 8, 2025 · Unlike a cold, the flu tends to come on suddenly and makes you feel much worse than a cold. Common symptoms of the flu often include a fever but not always, as well as headache, aching …

Dec 19, 2025 · Learn more about the symptoms, causes and prevention of this potentially deadly viral infection that attacks the respiratory system.

Dec 19, 2025 · 概述 流感也被称为流行性感冒，是指鼻、咽喉和肺部（均属于呼吸系统的一部分）受到的感染。流感是由病毒引起的。流行性感冒病毒与引起腹泻和呕吐的“胃肠型流感”病毒不同。 大多数流 …

Dec 30, 2024 · 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.

Nov 17, 2020 · Flu is a general term for seasonal influenza, which is a viral infection that attacks your respiratory system. Symptoms often come on suddenly and may seem like a cold at first, with a …

Oct 21, 2025 · Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.

Dec 19, 2025 · La gripe es causada por un virus. Los virus de la influenza son diferentes de los virus de la gastroenteritis viral, que causan diarrea y vómitos. La mayoría de las personas que tienen gripe …

Aug 13, 2020 · Symptoms of COVID-19 and the flu appear at different times and have some differences. With COVID-19, you may experience loss of taste or smell. COVID-19 symptoms generally appear …

Oct 23, 2025 · Get answers to your flu vaccine questions, including whether the vaccines are effective, what forms are available and what side effects to expect.