NEW YORK — Health officials say the flu is now hitting hard in parts of the country, especially the South and Midwest.
The Centers for Disease Control and Prevention on Friday reported cases were widespread in 29 states last week.
Experts worry this will be a bad season because the dominant strain — seen in roughly two-thirds of recent tests — is a nasty bug not covered in this year's vaccine. But officials have not seen an unusually high number of hospitalizations or deaths so far.