| predicted and observed mortality from vector-borne disease in small songbirds. | numerous diseases of wildlife have recently emerged due to trade and travel. however, the impact of disease on wild animal populations has been notoriously difficult to detect and demonstrate, due to problems of attribution and the rapid disappearance of bodies after death. determining the magnitude of avian mortality from west nile virus (wnv) is emblematic of these challenges. although correlational analyses may show population declines coincident with the arrival of the virus, strong inferenc ... | 0 | 23956457 |
| epidemiology of west nile virus: a silent epiornitic in northern delaware in 2007 without associated human cases. | abstract. we performed a 2-year longitudinal study (2006-2007) of west nile virus (wnv) infections in wild birds, mosquitoes, and sentinel chickens at 6 wnv-endemic sites in northern delaware. we determined virus infection rates of culex pipiens and other mosquito vectors as well as seroprevalence and antibody titers of amplifying hosts. endemicity status varied widely among the 6 sites based on 3 criteria-mosquito infections, sentinel chicken seropositivity, and wild bird seropositivity. a high ... | 2010 | 21033054 |