H1N1禽流感在美国死灰复燃

 　　H1N1禽流感在美国死灰复燃

　　WASHINGTON, Feb. 20 (Xinhua) -- This year's flu season in the U. S. has hit younger- and middle-age adults harder than in the past three years, as a result of the resurgence¹ of the H1N1 virus that caused a worldwide pandemic in 2009, the U.S. Centers for Disease Control and Prevention (CDC) said Thursday.

　　People aged² 18 to 64 represented 61 percent of all hospitalizations from influenza³, up from the previous three seasons when this age group represented only about 35 percent of all such hospitalizations, the CDC said.

　　Influenza deaths followed the same pattern with more deaths than usual occurring in this younger age group, said the CDC, failing to provide an exact number of deaths caused by the flu.

　　"Flu hospitalizations and deaths in people younger- and middle- aged adults is a sad and difficult reminder⁴ that flu can be serious for anyone, not just the very young and old," CDC Director Tom Frieden said.

　　The CDC urged that everyone should be vaccinated⁵ as a CDC study, also released Thursday, found that flu vaccination⁶ may reduce a person's risk of having to go to the doctor for flu illness by about 60 percent across all ages.

　　It recommends that everyone six months and older get an annual flu vaccine⁷. "The season is still ongoing⁸. If you haven't yet, you should still get vaccinated," said Frieden. Typically, the flu season ends in March or April in the U.S..

1 resurgence   

n.再起，复活，再现

参考例句：

• A resurgence of his grief swept over Nim.悲痛又涌上了尼姆的心头。
• Police say drugs traffickers are behind the resurgence of violence.警方说毒贩是暴力活动重新抬头的罪魁祸首。

2 aged   

adj.年老的，陈年的

参考例句：

• He had put on weight and aged a little.他胖了，也老点了。
• He is aged,but his memory is still good.他已年老，然而记忆力还好。

3 influenza   

n.流行性感冒，流感

参考例句：

• They took steps to prevent the spread of influenza.他们采取措施
• Influenza is an infectious disease.流感是一种传染病。

4 reminder   

n.提醒物，纪念品；暗示，提示

参考例句：

• I have had another reminder from the library.我又收到图书馆的催还单。
• It always took a final reminder to get her to pay her share of the rent.总是得发给她一份最后催缴通知，她才付应该交的房租。

5 vaccinated   

[医]已接种的，种痘的，接种过疫菌的

参考例句：

• I was vaccinated against tetanus. 我接种了破伤风疫苗。
• Were you vaccinated against smallpox as a child? 你小时候打过天花疫苗吗？

6 vaccination   

n.接种疫苗，种痘

参考例句：

• Vaccination is a preventive against smallpox.种痘是预防天花的方法。
• Doctors suggest getting a tetanus vaccination every ten years.医生建议每十年注射一次破伤风疫苗。

7 vaccine   

n.牛痘苗，疫苗；adj.牛痘的，疫苗的

参考例句：

• The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
• She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。

8 ongoing   

adj.进行中的，前进的

参考例句：

• The problem is ongoing.这个问题尚未解决。
• The issues raised in the report relate directly to Age Concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。