Both influenza A and B infections typically manifest the same broad symptoms, although they can vary case by case. Only testing by a doctor can reveal which type a patient has contracted.

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.

It's flu season, but not all influenza is the same. If you're feeling sick, it helps to know the difference between flu A and flu B symptoms, experts say.

Flu A and flu B symptoms. Whether it's flu A or flu B, you can expect to develop the same symptoms — so it'll be impossible to know which strain you have just based off the symptoms.

But, if you're comparing flu A vs. flu B, it's impossible to tell which strain you have based just on your symptoms. "They're clinically indistinguishable on a case-by-case basis," Ray says.

A cold has mild symptoms. You usually do not have fever, and if you do have fever, it's a low-grade 100 or 101. ABC News. Video. Live. Shows. Shop. Log In. Stream on. ColdandFluQuestions; ...

The first symptom of the flu was most likely to be a cough while for COVID-19 it was fever. COVID-19 can also be distinguished by the loss of taste and smell. However, symptoms vary from person to ...

Flu Symptoms to Watch Out For as Winter Illnesses Surge. Published Jan 14, 2025 at 1:14 PM EST Updated Jan 14, 2025 at 1:21 PM EST. By . Jess Thomson is a Newsweek Science Reporter based in London UK.

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 ...

"If you come in with some symptoms of cough or sore throat or runny nose, whatever it is, I can't tell you if that's a cold, if it's walking pneumonia, if it's COVID or the flu. You do need to ...

Both influenza A and B infections typically manifest the same broad symptoms, although they can vary case by case. Only testing by a doctor can reveal which type a patient has contracted.