101.   Health experts stress that neither Tamiflu nor the competing Relenza flu treatments are a substitute for a flu vaccine.

102.   Hong Kong academics are now teaming up with US officials for work on trials of the first experimental bird flu vaccine for humans made by Protein Sciences Corporation.

103.   In a standard flu vaccine, a person is injected with dead virus or pieces of virus.

104.   Kawaoka said the technique will allow researchers to manipulate the plasmids in order to create live viruses that could be used for flu vaccines.

105.   Meanwhile, it emerged yesterday that people had been put off signing up for clinical trials on the bird flu vaccine because of fears they may catch the virus.

106.   Scientists are gearing up to start clinical trials in public hospitals in Hong Kong to test the bird flu vaccine produced by Protein Sciences Corporation.

107.   Scientists will measure whether people given half a dose of flu vaccine produce as many flu-fighting immune cells as those who get a full vaccine.

108.   That is why new flu vaccines have to be developed each year.

109.   The FDA has ordered physicians to produce safety reports on the flu vaccine at quarterly intervals over the next two years.

110.   The government is recommending a change in flu vaccines this coming season to fight off different virus strains likely to strike.