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Volume 8, Number 3—March 2002

Research

Immunization with Heterologous Flaviviruses Protective Against Fatal West Nile Encephalitis

Robert B. TeshComments to Author , Amelia P.A. Travassos da Rosa, Hilda Guzman, Tais P. Araujo, and Shu-Yuan Xiao
Author affiliations: University of Texas Medical Branch, Galveston, Texas, USA;

Main Article

Table 5

Serologic response of hamsters following infection with St. Louis encephalitis virus (SLEV) strain Be Ar 23379 and subsequent challenge with West Nile virus (WNV)

Hamster no. HI antibody 30 days after SLEV infection HI antibody titer 6 days WNV challenge WN MAC-ELISA 6 days after WNV challenge
SLEV WNV SLEV WNV
8276 NT NT 1:320 1:640 0.202a
8277 NT NT 1:320 1:640 0.185
8278 1:80 1:80 1:160 1:160 0.141
8279 1:80 1:80 1:160 1:160 0.165
8280 1:80 1:80 1:640 1:640 0.276
8281 1:40 1:20 1:640 1:640 0.555
8282 1:80 1:40 1:160 1:80 0.177
8283 1:80 1:80 1:160 1:160 0.166
8298 1:160 1:80 1:320 1:320 0.139
8299 1:320 1:320 1:640 1:640 0.240

NT = not tested. HI = hemagglutination inhibition.
aOptical density value (>0.200 is positive).

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