| ticks (acari: ixodidae) and spirochetes (spirochaetaceae: spirochaetales) recovered from birds on a georgia barrier island. | from september 1997 through july 1999, 300 individuals and 46 species of birds were mist-netted and screened for ticks and spirochetes on st. catherine's island, liberty county, ga. seventy-six (25%) of the birds were parasitized by a meal intensity of 4.6 ticks. seasonally, more birds were infested with ticks during the summer (50% in 1998, 34% in 1999) than in spring (15% in 1998, 11% in 1999) or fall (21% in 1997, 20% in 1998), mainly because of severe infestations on some birds by immature s ... | 2001 | 11296828 |
| west nile virus antibody decay rate in free-ranging birds. | antibody duration, following a humoral immune response to west nile virus (wnv) infection, is poorly understood in free-ranging avian hosts. quantifying antibody decay rate is important for interpreting serologic results and for understanding the potential for birds to serorevert and become susceptible again. we sampled free-ranging birds in chicago, illinois, us, from 2005 to 2011 and atlanta, georgia, us, from 2010 to 2012 to examine the dynamics of antibody decay following natural wnv infecti ... | 2015 | 25919465 |
| avian species diversity and transmission of west nile virus in atlanta, georgia. | the dilution effect is the reduction in vector-borne pathogen transmission associated with the presence of diverse potential host species, some of which are incompetent. it is popularized as the notion that increased biodiversity leads to decreased rates of disease. west nile virus (wnv) is an endemic mosquito-borne virus in the united states that is maintained in a zoonotic cycle involving various avian host species. in atlanta, georgia, substantial wnv presence in the vector and host species h ... | 2017 | 28159002 |
| limited spillover to humans from west nile virus viremic birds in atlanta, georgia. | west nile virus (wnv) is a mosquito-borne pathogen that impacts the health of its passerine bird hosts as well as incidentally infected humans in the united states. intensive enzootic activity among the hosts and vectors does not always lead to human outbreaks, as is the situation throughout much of the southeastern united states. in georgia, substantial yearly evidence of wnv in the mosquito vectors and avian hosts since 2001 has only led to 324 human cases. although virus has been consistently ... | 2013 | 24107200 |
| urban land use predicts west nile virus exposure in songbirds. | urbanization is a widespread phenomenon that is likely to influence the prevalence and impact of wildlife pathogens, with implications for wildlife management and public health policies toward zoonotic pathogens. in this study, wild songbird populations were sampled at 14 sites along an urban rural gradient in the greater metropolitan atlanta (georgia, usa) area and tested for antibodies to west nile virus (wnv). the level of urbanization among sites was quantitatively assessed using a principal ... | 2008 | 18686573 |
| west nile virus antibodies in avian species of georgia, usa: 2000-2004. | west nile virus (wnv) was first isolated in the state of georgia in the summer of 2001. as amplifying hosts of wnv, avian species play an important role in the distribution and epidemiology of the virus. the objective of this study was to identify avian species that are locally involved as potential amplifying hosts of wnv and can serve as indicators of wnv transmission over the physiographic and land use variation present in the southeastern united states. avian serum samples (n=14,077) from 83 ... | 2006 | 16584328 |
| west nile virus epizootiology in the southeastern united states, 2001. | we investigated mosquito and bird involvement in west nile virus (wnv) transmission in july 2001 in jefferson county, fl, and lowndes county, ga. we detected 16 wnv-infected pools from culex quinquefasciatus, cx. salinarius, cx. nigripalpus, and culiseta melanura. in florida, 11% of 353 bird sera neutralized wnv. antibody prevalence was greatest in northern cardinal (cardinalis cardinalis, 75%), northern mockingbird (mimus polyglottus, 50%), common ground-dove (columbina passerina, 25%), common ... | 2005 | 15815153 |