The federal government is about to begin human trials for a swine flu vaccine and is tapping a local medical center to assist.

About 2,400 healthy adult volunteers will be given one or two shots, each containing 15 or 30 micrograms of vaccines made by two different companies.

The trials will be conducted at eight hospital and medical organizations from around the country. They include Group Health Cooperative in Seattle, Baylor College of Medicine in Houston, Children's Hospital Medical Center in Cincinnati, Emory University in Atlanta, the University of Iowa in Iowa City, the University of Maryland medical school in Baltimore, St. Louis University and Vanderbilt University in Nashville.

Volunteers will be monitored for several weeks for bad reactions.

If the vaccines are deemed safe, testing would then begin in children as young as 6 months.

The tests are key as the government decides whether to offer swine flu vaccine to millions of Americans starting in mid-October.

Unlike regular winter flu that is most dangerous to people over 65 and under 2, the new swine flu that has quickly spread around the globe seems to target school-age children, eenagers and young adults.

If you would like to volunteer for the swine flu vaccine trials, you can call Group Health at 206-287-2061. Participants must visit the study clinics in downtown Seattle a total of five times over six weeks. They must also be available for telephone follow-ups about seven months later.