(HealthDay News) -- About 10 percent of Americans get the flu each year, mostly as the weather turns colder.
While for most people the flu is a major inconvenience but a minor health threat, for older adults and others with weaker immune systems, the flu can be life-threatening.
The U.S. National Institute on Aging says you should contact a doctor without delay if:
New Trial Shows Pfizer’s mRNA Flu Shot Beats Traditional Flu Vaccine
Flu Season Starts Early in NYC as Cases Rise Fast
Flu-Linked Brain Swelling Is Rare in Kids, But It Can Be Fatal
Moderna’s New Flu Shot Shows Strong Results in Older Adults
Breakdown In Federal Health Tracking Leaves U.S. Vulnerable To Outbreaks, Pandemics, Experts Warn
