Volume 10, Number 12—December 2004
Differential Virulence of West Nile Strains for American Crows
aFollowing secondary NY99 challenge at 14 dpi.
bValues represent the greatest reciprocal dilution in which >90% plaque inhibition was achieved as compared to sera-negative control cultures.
cHomologous titers are depicted in bold print.
dNT, not tested; KEN, West Nile virus strain from Kenya; KUN (Kunjin), West Nile virus strain from Australia.
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