A new influenzavaccine, administered painlessly in a nasal spray, is effective for children.
一种新的流感疫苗以无痛的鼻喷剂接种,对儿童有效。
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There is no vaccine to protect humans from swine flu. The seasonal influenzavaccine will likely help provide partial protection against swine H3N2, but not swine H1N1 viruses.
Finally, people who have received influenzavaccine can later have an illness, caused by other common viruses that are not influenza, but be mistaken for the flu.