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Doctor insights on: What Causes A Flu

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What causes transient flu-like symptoms rather than flu itself? An infection in body?

What causes transient flu-like symptoms rather than flu itself? An infection in body?

Mainly immune system: Though direct viral killing can occur, causing some of the sx, in response to infections from viruses, your body produces a lot of different proteins to help signal and coordinate your immune system to fight infection, and to create a hostile environment to the virus. Examples includes interferon alpha/beta- this group of proteins can cause muscle aches, joint pain, and fever. Hope this helps. ...Read more

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Dr. Heidi Fowler
1,889 doctors shared insights

Flu (Definition)

The flu, otherwise known as influenza, is a viral infection of the nose and throat. Symptoms of influenza include fever, chills, runny nose, muscle aches, fatigue, malaise, headaches, and coughing. Children with the flu often have nausea and vomiting as well. Some strains of the flu are preventable by getting a yearly flu ...Read more


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What causes flu like symptoms to come and go?

May not be flu: Many illness can have symptoms like having the flu. The real flu typically lasts for 2-3 weeks (though you may feel run down longer). If your symptoms are lasting longer you may want to see a doctor to get a diagnosis. ...Read more

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What can cause reoccurring flu like symptoms come and go monthly?

What can cause reoccurring flu like symptoms come and go monthly?

Need more info: If you are having unexplained fever, chills, sweats and body aches (assuming unrelated to menses or ovulation) then see md to exclude autoimmune disorder. ...Read more

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What could cause flu-like symptoms and seizures?

What could cause flu-like symptoms and seizures?

A couple of ideas: A case of viral meningitis could do this, or dehydration affecting electrolyte balances, for example. ...Read more

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What can cause flu like symptoms every time I have sex?

What can cause flu like symptoms every time I have sex?

You. may be ....: Having a reaction to , if it is being used, spermicidal jelly or even the condum. ...Read more

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What causes flu-like symptoms post op hip replacement. This occurs daily since surgery 4 wks, ago.

See details: What exactly do you mean when you describe flu like symptoms? Muscle aching and fevers must be evaluated to rule out infection. Speak with your surgeon and your personal physician. ...Read more

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What could cause flu like symptoms with fatigue blood work is normal no sign of infection?

What could cause flu like symptoms with fatigue blood work is normal no sign of infection?

Many possibilites: Viral infections often produce little to no evidence of infection on CBC, esp. if no previous WBC differential to compare with, may only result in a shift of more lymphocyte to neutrophils than baseline, if that. Additionally, the symptoms are a systemic response to virus, if present; not necessarily caused by virus. As Soul?Mind?Brain?Body creatures, symptoms can response to a variety of stimuli. ...Read more

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What causes a persistent cold flu?

What causes a persistent cold flu?

Resistance: Everyone gets colds and flu but symptoms can persist if resistance is low from fatigue , allergies, vitamin deficiency or chronic illnes. ...Read more

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