Cell-cultured bird flu vaccine
The University Of Maryland School Of Medicine is looking into a bird flu
vaccine which is cultured in laboratory-grown cells and not traditionally with
An advantage of this new method is the ability to produce large amounts of
vaccine - drug companies would not be limited by the supply of specialised
chicken eggs used for the manufacture of traditional flu vaccines.
The vaccine being tested is made from a virus grown in a line of kidney
cells originally taken from African green monkeys, which are now
self-propagating. According to Dr James Campbell, the lead investigator on the
study, as many of the kidney cells as needed can be cultured.
"It is somewhat quicker than growing it in eggs and there is essentially no
limit to the amount of cells, the number of cells you can infect, whereas with
eggs there is a limit," said Campbell.
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