An experimental vaccine called Vi-rEPA has showed promising results in trials so far, indicating higher effectiveness and longer immunity.

Chiron said it had invested heavily to increase the supply of the vaccine, called Fluvirin, to the United States.

Merck & Company is the only company in the United States that makes the vaccine, called Pneumovax 23.

The vaccine, called Gardasil, guards against cancer and genital warts caused by the human papillomavirus, the most common sexually transmitted disease.

The vaccine, called Zostavax, is a souped-up version of the chickenpox vaccine.

If you are Rh-negative, you should receive a vaccine called Rh immunoglobulin after an abortion.

They have innoculated themselves against panic with a verbal vaccine called "the long haul."

A recent study has shown promise by a vaccine called FluBlOk, which is made in insect cells.

The vaccine, called Gardasil, acts against strains of the human papillomavirus that account for an estimated 70 percent of the cases of cervical cancer.

It was only last June that federal regulators approved the vaccine, called Gardasil.