How flu and coronavirus symptoms typically develop. A study led by researchers from the University of Southern California determined the order of COVID-19 symptom progression, ...

With these symptoms, it can be hard to know what’s making you sick, whether it’s cold, flu or COVID-19, without a test confirming the type of infection you have.

The most common flu symptoms are body aches, chills, cough, fatigue, fever, and headache. Less common symptoms of the flu include sore throat, vomiting, and diarrhea. If you think you have the flu ...

Symptoms of the flu usually come on suddenly and can be mild or severe. At best, a person may barely notice their symptoms, and at worst, the flu can lead to death. Here are flu symptoms to watch ...

Identify the Different Symptoms of the Flu and Covid-19. With fears of a “twindemic” in the United States this fall, here’s a guide to understanding what’s making you feel terrible.

Cold and flu symptoms may overlap, but the latter tend to be more severe. There is also a greater risk of complications with influenza, such as pneumonia, according to the CDC.

Most flu symptoms gradually improve over two to five days, but it's not uncommon to feel run down for a week or more. A common complication of the flu is pneumonia, particularly in the young ...

It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals.But not all influenza is the same. There are some notable differences between flu A and flu B strains.

That's a really important questions because a lot of times people use the term "the flu" for every type of respiratory illness, and that truly is not the case. A cold has mild symptoms. You ...

Roughly 1 in 5 unvaccinated people had the flu between 2006 and 2011, but only a quarter of them had symptoms, a study found. That could affect how the virus spreads.

Flu symptoms may appear within one to four days of infection, while COVID-19 symptoms may appear up to 14 days after infection. COVID-19 can be contagious for longer than the flu and may include ...