We told them that if they could find a better vaccine they should use it.

Scientists are now trying to take what they learned from the Thai trial and make a better vaccine with greater and more definite effectiveness.

On other fronts, scientists are thinking about an improved condom, and a better vaccine for whooping cough is now being tested.

The decoding of the genome is widely expected to help devise better vaccines.

He pointed out that the Salk vaccine was not 100 percent effective, but it still saved many people before a better vaccine came along.

May and Baker were of course informed, and they were briefed to make better vaccines, if ever they could do so.

Dr. Lehmann hopes his work will lead to better vaccines.

But it is not just overseas aid; that money will also lead to the development of better vaccines which we can use, too.

Many experts are putting their hope in a better vaccine, which is similar to one used routinely in Europe and Canada.

Other points that we consider important are the development of better vaccines against infectious animal diseases and a quality policy for agricultural products.