51.   Zhang, who isolated the set of T-cells believed to be at fault three years ago, based his experimental vaccine on a traditional immunization approach.

52.   A vaccine for bladder cancer is well-established, and an experimental vaccine for prostate cancer looks promising.

53.   An experimental vaccine that might help eliminate the need for annual flu shots is showing early promise in mice.

54.   Four macaques that were injected with the experimental vaccine suffered no ill effects after being exposed to normally lethal doses of the virus.

55.   Harvard University AIDS researchers working with monkeys say the virus overcame an experimental vaccine by changing a single gene, killing one of the animals.

56.   HUNDREDS of scientists have been injected with an experimental vaccine against the deadly bird flu, it was revealed yesterday.

57.   In another experiment, guinea pigs were given the virus four months after they got the experimental vaccine.

58.   Members of the United States Department of Agriculture returned home yesterday after visiting Hong Kong for a week to try out the experimental vaccine.

59.   Meyer also tested an experimental vaccine against red measles, also called rubeola, in West Africa.

60.   More than one dozen experimental vaccines using different genetic strategies have been tested in various laboratories.