Need a Flu Shot? Get It Now - The New York Times

Need a Flu Shot? Get It Now - The New York Times:
"If you’ve waited until now to get your flu shot, your procrastination may actually pay off, though you’d be unwise to delay getting the vaccine any longer.
Although there are some cases of flu in October and November in the United States, flu season here doesn’t usually get going full speed until December, peaking in most years in February and usually ending by April.
I’ve just learned from Dr. Michael T. Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, that immunity induced by the flu vaccine, which is rarely greater than 60 percent to begin with, tends to wane by 20 percent a month, leaving those who got their shot in August or September with less than desirable protection by the time they’re exposed to a variant of flu virus their body doesn’t recognize.
Dr. Osterholm suggested that “since 95 percent of flu outbreaks start in mid-December, it’s best to get the flu shot in early to mid-November...”
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