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Discovery May Boost Bird Flu Vaccine Potency
Compound increases ability of 'killer T-cells' to get rid of infection, study says
(HealthDay News) -- Boosting T-cell immunity may be one way to improve existing vaccines so that they can protect people during a bird flu pandemic, says an Australian study.
The 'killer T-cell' is the hit-man of the immune system. It is able to locate and destroy virus-infected cells in our body, helping rid us of infections, the study's lead author, Stephen Turner, from the microbiology and immunology department at the University of Melbourne, said in a university news release.
Unfortunately, current influenza vaccines are poor at inducing killer T-cell immunity, he said. Therefore, we wanted to see if we could improve the current vaccine formulation to induce killer T-cells after vaccination.
Turner and his fellow researchers added a compound known to increase immunity to a flu vaccine.
The addition of this compound promoted significant generation of potent killer T- cell immunity and provided protection from infection, he said. The significance of these findings is that, rather than having to design a new vaccine altogether, we can improve current flu vaccines by adding this potent immune modulator.
The study was published this week in the
Proceedings of the National Academy of Sciences
.
With appropriate clinical testing, we could see improvements to current vaccines within the next five years, Turner said.
More information
The World Health Organization has more about
bird flu
.
-- Robert Preidt
SOURCE: University of Melbourne, news release, March 2, 2009
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This is a story from
HealthDay
, a service of ScoutNews, LLC. Copyright =A9 2009
ScoutNews LLC
. All rights reserved.
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