| 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 |
| comparison of light traps, gravid traps, and resting boxes for west nile virus surveillance. | west nile virus surveillance was conducted at five sites in new castle county, de, and one site in salem county, nj, from june through september, 2004, using dry ice-baited centers for disease control miniature light traps, infusion-baited gravid traps, and resting boxes. all trap types were simultaneously placed at each site every two weeks and run overnight. collected mosquitoes were identified to species, pooled, and analyzed for virus using a real-time reverse transcriptase polymerase chain ... | 2007 | 18260519 |
| stormwater ponds, constructed wetlands, and other best management practices as potential breeding sites for west nile virus vectors in delaware during 2004. | we performed longitudinal surveys of mosquito larval abundance (mean mosquito larvae per dip) in 87 stormwater ponds and constructed wetland in delaware from june to september 2004. we analyzed selected water quality factors, water depth, types of vegetation, degree of shade, and level of insect predation in relation to mosquito abundance. the 2004 season was atypical, with most ponds remaining wet for the entire summer. in terms of west nile virus (wnv) vectors, wetlands predominantly produce a ... | 2006 | 17019774 |
| host-feeding patterns of suspected west nile virus mosquito vectors in delaware, 2001-2002. | paucity of data on host-feeding patterns and behavior of 43 mosquito species that are reported as suspected west nile virus (wn) vectors has limited full evaluation of their vectorial capacity. recent studies addressing this issue need additional confirmation and should also be expanded to include collections of species or subpopulations attracted to humans. we used 4 types of collection methods to collect mosquitoes, including omnidirectional fay-prince traps, centers for disease control-type l ... | 2005 | 16033122 |