Article
Mutation in NS5 protein attenuates mouse neurovirulence of yellow fever 17D vaccine virus.
The Journal of general virology - 1 Aug 1998
Xie H, Ryman K D, Campbell G A, Barrett A D
Abstract excerpt
The 17D-204 vaccine manufactured in South Africa (17D-204-SA) and a large plaque variant (17D-LP) derived from it were highly virulent in adult mice. The LD50 of 17D-LP virus was 0-2 p.f.u. for mice following intracerebral inoculation. In comparison, a medium plaque variant derived from 17D-LP, termed 17D-MP virus, was found to be attenuated in adult mice following the same route of inoculation (> 10(4)...
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