Collins says the administration indicated there would be enough vaccine for everyone by now, but supplies remain short.

Sen. Susan Collins is taking the Obama administration to task over its handling of vaccine supplies for the H1N1 virus and seasonal flu. At a Homeland Security and Governmental Affairs Committee hearing on the issue yesterday, Collins said the administration has not been upfront about the problems that have slowed the production and distribution of the vaccines.

Collins, the ranking Republican on the committee, said U.S. Health and Human Services Secretary Kathleen Sebelius testified last month that there would be "enough vaccine to vaccinate every American who wants to be vaccinated." But Collins said that's not been the case. "It is now mid-November and we know supply production is still lagging," she said.

Collins said the frustration with the situation is growing among state and local health officials as well as among citizens who are having trouble obtaining the vaccine.

Administration officials acknowledged that vaccine production was lower than original predictions. They said it's been a challenge to produce enough of both vaccines for everyone in a short period of time.