Based on what we're currently seeing with respect to the virus and epidemiologic data, states, communities, and health care providers should begin planning strategies for how they will vaccinate younger people (children and younger adults), pregnant women, healthcare personnel, and people who have underlying health conditions. The Advisory Committee on Immunization Practices (ACIP) and other federal advisory bodies will continue to monitor the virus and review epidemiologic data over the summer. We'll be looking to the ACIP and other stakeholders, as well as the public, as we move forward in our planning. It is possible that vaccine priority groups will differ from earlier guidance as more data becomes available however it's very important for planning to continue based on information currently available.

Source: CDC H1N1 Flu | H1N1 Flu and You