There’s lots of flu in lots of places,” said Daniel Jernigan, director of CDC’s influenza division. (CDC officials said there are also spot shortages of antiviral medicines in parts of the country with lots of flu. In addition, influenza B viruses tend to become more active later in a flu season. So far, the data suggest that this season’s vaccine will be about 32 percent effective against circulating H3N2 viruses. “We have a lot of flu season to get through still,” Jernigan said.

Source: Washington Post January 12, 2018 19:22 UTC