A、Because their babies are particularly weak. B、Because the flu vaccines are too difficult to reach. C、Because the flu vaccines

[3]An American government panel has recommended that pregnant women, health-care workers, children and young adults up to the age of 24 should get priority for the flu vaccine released later this year. But the Advisory Committee on Immunization Practices conceded the policy may change if not enough vaccine is produced by October. Doctor Ann Schuchat of the Center for Disease Control said it is vital for pregnant women who have breathing illness and fever to get early treatment. [4]We think some suitable medicines for them can be lifesaving, and that’s a very important message. We also think it is important for them to get seasonal influenza vaccine, and today the committee recommended that when vaccine is available, and we have a decision to go forward that the pregnant women really out of consider getting the H1N1 vaccine.
3. Who are less necessary to receive the flu vaccinations?
4. Why do pregnant women enjoy the top priority to get vaccine?