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Both colds and flu are caused by viruses. The color of the phlegm in respiratory viral infections such as these is very similar. If there is a secondary bacterial infection on top of the virus, the phlegm color may be darker and more greenish/yellow, but that is not always the case as symptoms can vary widely from person to person and microbe to microbe. See the related question below for differences in the cold and flu symptoms.

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Q: What color is phlegm in a cold versus the flu?
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Related questions

What is the difference between flu and phlegm?

Phlegm is mucous. It is generally referred to as "phlegm" and sometimes as "sputum" when referring to mucous found in the throat or expelled from the lungs/bronchial passages by way of a cough.


What does green flem mean?

I believe what is being referred to here as "flem" is really phlegm, or the thick mucus that comes from the mouth. Green phlegm can mean a sign of an infection such as a cold or flu, bronchitis, or some kind of allergic reaction. Usually any kind of colored phlegm can be a sign of an infection so it is advisable to visit a health center or doctor if one has persistent colored phlegm for prolonged periods of time.


If you have both flu and cold symptoms what do you have?

You could have either a cold or the flu or both. Or, you could have allergies. See the related questions for information about the symptoms of cold and flu.


Is color blindness an infectious disease like the common flu or influenza?

No, it is not an infectious disease like a cold or flu. Color blindness occurs in people who have a specific genetic trait for it. They often have adapted to the visual disorder by the time they are tested to find out they have it.


Can sub zero temperatures cure a cold or flu?

No. Cold and flu viruses are unaffected by cold or even freezing temperatures.


How can the chickenpox and the cold and flu be treated?

Calamine lotion for chickenpox...starve a flu and feed a cold.


Can you go to your friends house with a cold or flu?

Yes u can. Just expect to get the cold or flu.


What is AAA cold?

it is cold and flu severe


Why are flu jabs given out in winter when really catching the flu or the cold has nothing to do with being out in cold weather?

The flu has a lot to do with the weather. When it is cold out people tend to stay inside and pass diseases around. The flu is one of those.


What color is the Swine Flu?

The swine flu is PURPLE. :]


What is terra flu?

cold


Can you take cold and flu tablets while taking Epilim?

Can u take cold and flu tablets with epilim