Each year, the vaccine consists of the three strains of influenza that are expected to be most prevalent.

The vaccine consisted of a live rabies virus, genetically modified to be nonvirulent.

The vaccines would consist of particles derived through genetic engineering from a particular virus or bacteria.

The vaccine consisted of a protein, gp160, that is made naturally by the AIDS virus.

The vaccine consists of a genetically engineered protein that, researchers hope, will stimulate the body to produce antibodies against the bacteria that cause Lyme.

The vaccine consists of a live, but attenuated, strain of the yellow fever virus called 17D.

An oral vaccine, the Sabin vaccine consists of weakened forms of the viruses that cause polio.

That vaccine consists of a different AIDS virus protein, manufactured by a genetically altered insect cell.

Since the vaccine consists of only one protein and not the whole virus, it cannot give someone AIDS.

Like the conventional one, the Japanese vaccine consists of a live vaccinia virus, a cousin of the smallpox virus.