West Nile Virus Circulation Detected in Northern Italy in Sentinel Chickens.

@article{citeulike:1652070, abstract = {Ninety percent (56/62) of sentinel chickens introduced to two regions within the Italian Alps seroconverted to West Nile virus (WNV) during the summer of 2005, showing a range of antibody titres from 1/20 to 1/320 in a virus neutralization test. Neutralization specificity for WNV antibodies was confirmed on an additional 34 sera that were tested in parallel against WNV (16/34 seropositivity), Usutu virus (3/34 seropositivity) and Koutango virus. The geometric mean neutralizing titre (GMT) calculated for WN-specific antibodies was 33.68 and did not differ significantly amongst sample sites, although the overall results indicate more active circulation of WNV at the higher elevations. Such high levels of seroconversion raise the possibility that many chickens may have been exposed to virus via routes other than mosquito transmission. No chickens or any other local animals were associated with illness due to WNV implying that WNV, and to a much lower extent Usutu virus, circulate harmlessly amongst wildlife species in northern Italy from late May onwards until early autumn.}, address = {Centre for Alpine Ecology, Trento, Italy.}, author = {Rizzoli, Annapaola and Ros\`{a}, Roberto and Rosso, Fausta and Buckley, Alan and Gould, Ernie }, citeulike-article-id = {1652070}, doi = {10.1089/vbz.2006.0626}, issn = {1530-3667}, journal = {Vector Borne Zoonotic Dis}, keywords = {disease, west-nile}, month = {September}, posted-at = {2007-09-19 16:05:43}, priority = {2}, title = {West Nile Virus Circulation Detected in Northern Italy in Sentinel Chickens.}, url = {http://dx.doi.org/10.1089/vbz.2006.0626}, year = {2007} }

TY - JOUR ID - citeulike:1652070 L3 - citeulike-article-id:1652070 TI - West Nile Virus Circulation Detected in Northern Italy in Sentinel Chickens. JF - Vector Borne Zoonotic Dis AD - Centre for Alpine Ecology, Trento, Italy. SN - 1530-3667 N2 - Ninety percent (56/62) of sentinel chickens introduced to two regions within the Italian Alps seroconverted to West Nile virus (WNV) during the summer of 2005, showing a range of antibody titres from 1/20 to 1/320 in a virus neutralization test. Neutralization specificity for WNV antibodies was confirmed on an additional 34 sera that were tested in parallel against WNV (16/34 seropositivity), Usutu virus (3/34 seropositivity) and Koutango virus. The geometric mean neutralizing titre (GMT) calculated for WN-specific antibodies was 33.68 and did not differ significantly amongst sample sites, although the overall results indicate more active circulation of WNV at the higher elevations. Such high levels of seroconversion raise the possibility that many chickens may have been exposed to virus via routes other than mosquito transmission. No chickens or any other local animals were associated with illness due to WNV implying that WNV, and to a much lower extent Usutu virus, circulate harmlessly amongst wildlife species in northern Italy from late May onwards until early autumn. KW - disease KW - west-nile AU - Rizzoli, Annapaola AU - Rosà, Roberto AU - Rosso, Fausta AU - Buckley, Alan AU - Gould, Ernie PY - 2007/09/03/ UR - http://dx.doi.org/10.1089/vbz.2006.0626 ER -