Article
The development of live attenuated cold-adapted influenza virus vaccine for humans
1 Oct 1999
Abstract excerpt
A procedure to attenuate live influenza virus of type A and type B was developed using adaptation of the virus to grow at 25 degrees C (cold adaptation; ca). Through a series of stepwise passages, two stable mutants were obtained and designated as 'Master' strains, one for type A influenza virus (A/Ann Arbor/6/60-H2N2) and one for type B influenza virus (B/Ann Arbor/1/66). These mutants were used in genetic...
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