美国CDC官网 2014年9月15日发布了 《Flu Season is Around the Corner》文章指出：

大于6个月的孩子都应该每年接种流感疫苗。接种疫苗后人体需要大约2周时间来产生抗体以保护自己免受流感侵害。为了保护自己和所爱的人，请现在就接种流感疫苗!

 Everyone 6 months and older should get an annual flu vaccine. It takes about two weeks after vaccination for your body to develop full protection against the flu. Get vaccinated now to protect yourself and your loved ones!

值得特别指出的是，接种流感疫苗对以下人群的意义更为重大：

1.感染流感后引发严重并发症（如肺炎）风险较高的人：

（1）患有哮喘、糖尿病、慢性肺疾病等基础疾病的人

（2）孕妇

（3）6月龄~5岁的婴幼儿（特别是2岁内的婴儿）

（4）65岁以上的老年人

2.和高风险人群一起住或照顾他们的人：

（1）接触和照顾哮喘、糖尿病和慢性肺疾病患者的人

（2）接触和照顾6月龄以内婴儿的人

由于目前还没有适用于6月龄以下婴儿的流感疫苗，所以母亲孕期以及照顾婴儿的人接种流感疫苗由其显得重要，只有确保他们接种疫苗免于罹患流感，才能防止流感病毒传播至婴幼儿，使这些小宝宝得到保护。

（3）卫生保健人员

Those people include the following:

People who are at high risk of developing serious complications (like pneumonia) if they get sick with the flu.

People who have certain medical conditions including asthma, diabetes, and chronic lung disease.

Pregnant women.

People younger than 5 years (and especially those younger than 2), and people 65 years and older.

A complete list is available at People Who Are at High Risk of Developing Flu-Related Complications.

People who live with or care for others who are at high risk of developing serious complications (see list above).

Household contacts and caregivers of people with certain medical conditions including asthma, diabetes, and chronic lung disease.

Household contacts and caregivers of infants younger than 6 months old.

Health care personnel.

@医生妈妈欧茜 提醒您：保护自己保护家人，请接种流感疫苗，孕妇和6个月以上的孩子也别犹豫哟。

原文链接：http://www.cdc.gov/features/flu/?s_cid=cdc_homepage_whatsnew_002