11.   Because the flu vaccine is made from viruses grown in eggs, however, you should not get the vaccine if you are allergic to eggs.

12.   Because of late shipments of flu vaccine, health officials are expecting a shortage early in the season.

13.   A doctor administers a flu vaccine earlier this month.

14.   A preliminary study sponsored by the federal government has found that a genetically engineered flu vaccine is as effective as the one now in use.

15.   A registered nurse at a San Francisco Bay Area hospital, her niece had brought home a vial of flu vaccine.

16.   But researchers in Salt Lake City recently reported that DHEAS helped elderly people respond more effectively to a flu vaccine.

17.   But the company also has high hopes for FluMist, the nasal-spray flu vaccine it is developing that is now under review by the FDA.

18.   But the reality was that yet another obstacle had emerged to threaten the timely delivery of the flu vaccine.

19.   But, those who got the flu vaccine earlier are doing well.

20.   Could the current delay in production of flu vaccine be a blessing in disguise?