How effective is this year's flu shot? - CBS News

1. How effective is this year's flu shot?  CBS News
2. Milder flu season may be due to a better flu vaccine match, report says  NBCNews.com
3. This year’s flu shot is less than 50% effective in preventing infection, CDC says  WJW FOX 8 News Cleveland
4. How effective is this year's flu vaccine?  CBS News
5. This Common Flu Virus Is a Growing Threat  The Wall Street Journal
6. View full coverage on Google News

(CLICK HERE TO READ AND SEE MORE)