The FDA approved the new mFlusiva flu vaccine, but the CDC isn’t recommending it. Here’s why

The Food and Drug Administration recently approved a new flu vaccine that tested well in older adults. But the federal agency responsible for telling doctors and the general public how to use it has made no recommendation on it.The Centers for Disease Control and Prevention’s inaction on the mFlusiva vaccine marks a break in longstanding practice. It’s also an example of how the agency’s vaccine review-and-recommendation process has been blown up in the past year, grinding deci...