Skip directly to search Skip directly to A to Z list Skip directly to site content
CDC Home

Volume 10, Number 12—December 2004


Differential Virulence of West Nile Strains for American Crows

Aaron C. Brault*†Comments to Author , Stanley A. Langevin*, Richard A. Bowen‡, Nicholas A. Panella*, Brad J. Biggerstaff*, Barry R. Miller*, and Nicholas Komar*
Author affiliations: *Centers for Disease Control and Prevention, Fort Collins, Colorado, USA; †University of California, Davis, California, USA; ‡Colorado State University, Fort Collins, Colorado, USA

Main Article

Table 3

Cross-neutralization immune response of American Crows at 14 days postinfection with either KEN or KUN viruses

Sample no. Inoculation NY99 KEN KUN Difference
Crow 8 KEN 640a 640b NT 0
Crow 1 KUN 80 NTc 160 2-fold
Crow 2 KUN 80 NT 80 0
Crow 3 KUN 160 NT 320 2-fold
Crow 4 KUN 40 NT 80 2-fold
Crow 5 KUN 40 NT 40 0
Crow 6 KUN 20 NT 20 0
Crow 7 KUN 80 NT 80 0
Crow 8 KUN 80 NT 160 2-fold

aValues represent the greatest reciprocal dilution in which ≥90% plaque inhibition was achieved as compared to sera-negative control cultures.
bHomologous titers are depicted in bold print.
cNT, not tested; KEN, West Nile virus strain from Kenya; KUN (Kunjin), West Nile virus strain from Australia.

Main Article

Top of Page The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC–INFO