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Volume 16, Number 9—September 2010


Cotton Rats and House Sparrows as Hosts for North and South American Strains of Eastern Equine Encephalitis Virus

Nicole C. Arrigo, A. Paige Adams, Douglas M. Watts, Patrick C. Newman, and Nikos VasilakisComments to Author 
Author affiliations: Author affiliations: University of Texas Medical Branch, Galveston, Texas, USA (N.C. Arrigo, A.P. Adams, P.C. Newman, S.C. Weaver); University of Texas at El Paso, El Paso, Texas, USA (D.M. Watts)

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Table 3

Comparisons of mean peak titers of eastern equine encephalitis virus between experimental cohorts*

Mean peak virus titer, log10 PFU/mL (± SEM)

Between-cohort comparison, p value
Juvenile cotton rats
Mature cotton rats
House sparrows
Juvenile vs. mature rats
Juvenile rats vs. house sparrows
Mature rats vs. house sparrows
FL93 (FL93-939) 7.0 (0.3) 4.5 (0.3) 7.5 (0.4) <0.001 0.271 <0.001
PE70 (77U104) 7.6 (0.2) 5.1 (0.3) 6.2 (0.5) <0.001 0.026 0.036
CO92 (C49) NT 3.8 (0.8) 4.9 (0.4) NT NT NT

*Two-tailed p values determined by Student t test; p values <0.001 are not specified. Boldface indicates significant difference. NT, not tested.

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