there’s no benefit to receiving the flu shot a second time if you received the flu shot in september. a vaccine received in the fall should protect you through the flu season. the flu shot for the northern hemisphere is formulated once a year and there have not been any updates to the influenza vaccine for the 2012-2013 season since the last time you received it.
i recievd the flu shot in september. would it help to get it again? are there any updates to the current shot?