流感流行期间<span style='color:#FB4747'>打</span>疫苗有用<span style='color:#FB4747'>吗</span>？去年<span style='color:#FB4747'>打</span>过今年<span style='color:#FB4747'>还要</span><span style='color:#FB4747'>打</span><span style='color:#FB4747'>吗</span>？
核心毒株确认已变！<span style='color:#FB4747'>流感疫苗</span><span style='color:#FB4747'>还要</span><span style='color:#FB4747'>打</span><span style='color:#FB4747'>吗</span>？
高烧咳嗽全身痛！孩子已得流感，<span style='color:#FB4747'>还要</span><span style='color:#FB4747'>打</span>疫苗<span style='color:#FB4747'>吗</span>？答案明确：还是要<span style='color:#FB4747'>打</span>！
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