11.   Baltimore said several approaches to finding a vaccine are being studied.

12.   Controversy has erupted around the latest study claiming to have found a vaccine against malaria.

13.   Efforts to find a vaccine continue.

14.   Other AIDS researchers said the Harvard study renews hope of finding a vaccine against the disease.

15.   Researchers worldwide are scrambling to find new vaccines against staph because the common bacterial infection is becoming more resistant to drugs such as penicillin.

16.   She said a large focus of the effort would be on finding a vaccine.

17.   The key to finding a vaccine against the AIDS virus may lie with genetically-engineered animals, the US professor who jointly discovered the virus said here Wednesday.