scientists have been working late nights and weekends to organize the studies and recruit volunteers.
"Typically it takes a year to do this,"
Health officials are haunted by the swine flu vaccine campaign in 1976, which was stopped after unexpectedly high numbers of patients suffered a paralyzing condition called Guillain-Barre Syndrome
It's possible the government will begin a public vaccination campaign before all of the work of the trials is complete
The studies will
help determine dosage and whether it can be given with a seasonal flu shot.