Flu cases rise in the U.S. as symptoms to watch for include fever and cough

Flu cases are rising in the U.S., with 18.6% of tests positive for influenza as of January 4. The predominant strains are A(H1N1)pdm09 and A(H3N2). There have been 16 flu-related deaths this season. Common flu symptoms include fever, cough, sore throat, and body aches. While fever is typical, some may not experience it, especially those with weakened immune systems. Recovery usually takes one to two weeks. Influenza A is more widespread than B, with 1,743 reported cases of A compared to 40 of B. The CDC recommends flu vaccinations for everyone aged 6 months and older, even late in the season.