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en.wikipedia.org/wiki/Influenza-like_illness

Influenza-like illness (ILI), also known as acute respiratory infection (ARI) and flu- like syndrome/symptoms, is a medical diagnosis of possible influenza or other illness causing a set of common symptoms.

www.webmd.com/cold-and-flu/flu-guide/flu-symptoms-types

Fever, muscle aches, headaches -- all are flu symptoms. Learn about types of flu viruses (including bird flu), the symptoms, and complications in high-risk ...

www.webmd.com/cold-and-flu/cold-guide/flu-cold-symptoms

Flu symptoms often mimic cold symptoms with nasal congestion, cough, aches, and malaise. But a common ...

www.healthline.com/health/cold-flu/early-flu-symptoms

Apr 17, 2017 ... Body aches and chills are also common flu symptoms. If you're coming down with the flu virus, you may mistakenly blame body aches on ...

www.mayoclinic.org/diseases-conditions/flu/symptoms-causes/dxc-20248062

Oct 20, 2016 ... Common signs and symptoms of the flu include: ... If you have flu symptoms and are at risk of complications, see your doctor right away. Taking ...

www.cdc.gov/flu/consumer/symptoms.htm

Mar 1, 2017 ... The flu is a contagious respiratory disease that can cause mild to severe illness, and can even lead to death - CDC.

www.cdc.gov/flu/about/disease/complications.htm

May 23, 2016 ... People who have the flu often feel some or all of these symptoms: ... vomiting and diarrhea, though this is more common in children than adults.

medlineplus.gov/flu.html

Jun 28, 2017 ... Symptoms of the flu come on suddenly and are worse than those of the common cold. They may include. Body or muscle aches; Chills; Cough ...

www.medicinenet.com/influenza/article.htm

Note that the majority of food poisoning symptoms are related to the gastrointestinal tract, except for fever. The common signs and symptoms of the flu include ...