六级练习2012.03.06 likely, annual, relative, research, University

Rebecca949

Getting a flu shot can help prevent influenza. But now, a large study in Britain indicates that older adults who get an annual flu vaccination are less likely to suffer a heart attack. (1)_________________________________, age 40 and older. Researcher Niroshan Siriwardena of Britain's University of Lincoln led the study.
"Our research suggests that flu shots are associated with a reduction in relative risk of heart attack in adults by about 19%." (2)_________________________________. The results were mathematically adjusted to reflect the fact that (3)_________________________________ are more likely to get a flu shot.

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kobe

貌似播放不了

susan.sui

1.the study included more than 78,000people
2.the reduction was even higher 21% for people who got vaccination in the flu season.
3.the people who are higher risk for heart attack first place.