It kills, on average, about 24,000 people in the United States each year, including about 100 children, according to the CDC. Influenza activity often begins to increase in October and November.

This season’s influenza shots have so far been 42 percent effective, which is consistent with recent years, the Centers for Disease Control and Prevention (CDC) said this week.

This season's flu vaccine offers meager ... according to the CDC. Vaccine makers, including Pfizer and Moderna, are developing potential flu shots that use mRNA technology, the same platform ...

"Commonly, it's been closer to 60 percent," said Brendan Flannery, an epidemiologist at the CDC's influenza division, who said this year's figure is nearly the lowest the agency has seen during ...

LOS ANGELES (CBSLA.com/AP) — The Centers for Disease Control now says this year's flu vaccine is the least effective in a decade. The agency said Thursday that the ...

It kills, on average, about 24,000 people in the United States each year, including about 100 children, according to the CDC. Influenza activity often begins to increase in October and November.

Flu season is about to start, and public health officials are worried that their recommendation earlier this year to avoid using the nasal spray version of the annual vaccine will result in ...