Americans are split on getting an annual flu shot, with four out of 10 having done so in the past year and around half saying they had already received or were planning to get the vaccine this year, according to new national survey data.
Americans are split on getting an annual flu shot, with four out of 10 having done so in the past year and around half saying they had already received or were planning to get the vaccine this year, according to new national survey data.