"common flu" is correct and usable in written English.
You can use it when referring to a type of viral illness that is usually mild. For example, "Many people contract the common flu during the winter months."
At Tuesday's session, city officials said they were thinking far beyond the common flu.
However, CDC officials believe H3N2 will be the most common flu bug this winter.
One of the major causes of mortality in the elderly is influenza, which is just the common flu.
These mushrooms feature a poison known as orellanin, which initially causes symptoms similar to the common flu.
Thus far, it has proved no more deadly than seasonal flu and can be suppressed by Tamiflu and Relenza, the most common flu drugs.
Dutton said it was "very important for Australians to understand" that Ebola spread via bodily fluids and was "not like the common flu".
The goal of this research would be to develop a daily diary or PRO measure that can be used to assess the most common flu-like symptoms.
Look for common flu-like symptoms.
Perceived low efficacy of vaccines Misconceptions arising from confusing symptoms of influenza and the common cold ("flu") [ 28], detracted from the perceived efficacy of influenza vaccination.
Most common seasonal flu vaccines combine antigens derived from the three circulating influenza strains: two strains, H1 and H3, for influenza A and one strain for influenza B, as recommended by the WHO for each season in the Northern and Southern Hemispheres (http://www.who.int/influenza/en/).
And the virus was found in rectal swabs, which is important for hospitals to know because it means diarrhea, common among flu patients, can also spread the disease.
