1.   Doctors worried that there would not be enough vaccine for everyone who needed it.

2.   Hepatitis remains a killer, and although a highly effective vaccine is now available, very few gay men have taken it.

3.   The vaccine is available for those who are most at risk from the flu epidemic.

4.   Vaccines have been successful in preventing illness.

5.   We need to persuade parents that almost all vaccines are harmless.

6.   The tests proved the vaccine to be effective.

7.   Both vaccines are highly effective and safe.

8.   There is no data to indicate that recombinant vaccine is potentially or actually safer than the plasma-derived product.

9.   Unlike AIDS, vaccines are available to prevent acute infection and therefore the development of the carrier state.