1.   Scientists are hoping that a new vaccine will eventually come out of their research.

2.   Vaccines will undoubtedly come as a practical development, and with efficacy against mucosal transmission.

3.   The vaccine comes in two parts.

4.   Vaccine now comes in pill form and a much-improved shot.

5.   Teams in eastern Congo had to overcome rumors that the vaccines had come from Rwanda, which is backing rebels opposed to Congolese President Laurent Kabila, Geldof said.

6.   The vaccine has come under increasing scrutiny from lawmakers as troops have complained of fevers, muscle pain and dizziness.

7.   The vaccine has come under increasing scrutiny from lawmakers as a growing number of troops have refused to take the six-shot regimen.

8.   The vaccine has come under increasing scrutiny from lawmakers as soldiers have expressed concerns.

9.   The vaccines came under fire from critics after some volunteers tested positive for the AIDS virus.