Some people who get the flu have only mild symptoms. Others become severely ill and need to go to the hospital. The flu can also be fatal. Getting a flu shot every year can help protect you.

Why? Experts say the flu can turn into pneumonia, an infection that adults age 65 and older are more prone to developing. Here we explain who's most at risk and key warning signs to watch for.

Flu symptoms can include fevers ... overall health and the severity of the infection. Children and older adults may take longer to recover, and conditions like asthma, diabetes or heart disease ...

Traditionally, flu season peaks around February ... per year among adults age 65 or older in the U.S. Symptoms in adults typically include cold-like symptoms, health officials note that if ...

usually causes mild symptoms akin to cold that go away on their own. But for babies, some young children and older adults, it can be serious. The flu spreads mainly through droplets when an ...

Compared to the flu, fever is rare, but low grade fevers can also occur, usually in older children and adults. "The signs and symptoms of a cold usually peak within 2 to 3 days of infection," the ...

Some patients may also suffer from diarrhea and/or vomiting, although these symptoms are more common in children than in adult patients. "Most people who get flu will recover in a few days to less ...

When you think of the flu, symptoms like fever ... While diarrhea is less common in adults, it can still occur, especially during flu seasons dominated by certain influenza strains, such as ...

Flu symptoms may appear within one to four days ... While most children and adults experience mild symptoms with RVS, infants less than a year old can experience more severe inflammation symptoms ...

“Flu symptoms are very hard to distinguish from ... but that’s generally more common in children than adults,” Aderson said. Children also may be more fussy than usual, according to the ...

both are more likely to cause severe illness among babies and older adults and treatment is the same for both. Whether it's flu A or flu B, you can expect to develop the same symptoms — so it'll ...