seroepidemiological study of west nile virus and rift valley fever virus in some of mammalian species (herbivores) in northern turkey.

b a ckground: west nile virus (wnv) and rift valley fever virus (rvfv) are mosquito-borne viral diseases. the objective of this study was to investigate the rvfv and wnv infections as serologically in different mammalian species (cattle, horse, goat, sheep and water buffalo) in the northern turkey. m e t hods: blood samples randomly collected from 70 each cattle, horse, sheep, goat and water buffalo were ana- lyzed for the presence of antibodies to rvfv and wnv using an competitive enzyme-linked immunosorbent assay (c-elisa) in northern turkey. results: none of the animals were positive for antibodies to rvfv. in contrast, wnv antibodies were found in two of 350 samples (0.57%). conclusion: this may suggest that the rvfv disease is not present in northern turkey.this is the first serological study on rvfv in turkey.