NEWCASTLE DISEASE, WILD BIRDS - USA (02): (MINNESOTA)
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Date: Fri 31 Aug 2012
Source: Star Tribune [edited]
<http://www.startribune.com/local/168159856.html>
Detection of a disease that strikes various waterfowl has prompted the closure of islands in 2 southern Minnesota lakes, officials announced Friday [31 Aug 2012].
The state Department of Natural Resources (DNR) is closing the islands in Minnesota Lake, near Mankato, and Pigeon Lake, west of the Twin Cities near Dassel, to waterfowl hunters and other lake users.
"Early goose season starts on Saturday [1 Sep 2012]; that's why we need to get this out today" to hunters, said Erika Butler, a DNR wildlife veterinarian. Trespassers caught on the islands will be subjected to ticketing, Butler added.
The closures come after the National Veterinary Services Laboratory in Ames, Iowa, confirmed the disease, called Newcastle, from samples collected during the cleanup of dead cormorants in early August [2012].
The islands will remain off limits until the risk of spreading the disease has diminished, the DNR added. Islands in other lakes throughout the state could face the same fate.
Minnesota Lake's restricted island is near the western shore and is home to a large water bird nesting colony. The DNR said that temporarily lowered water levels have exposed the lake bed, providing a land route to the island.
Results from samples submitted from bird die-offs are pending. Some of those lakes include Mille Lacs; Johanna near Glenwood; Pelican near Brainerd; Chautauqua and Pelican near Fergus Falls; and Wells near Faribault.
Butler said the DNR has been seeing the disease pop up in 2-year cycles starting in 2008.
Newcastle disease rarely affects humans, but it can occasionally cause conjunctivitis, a relatively mild inflammation of the inner eyelids, according to the Minnesota Department of Health.
Newcastle is a viral disease that most commonly infects cormorants, but also gulls and pelicans. Signs of infection include droopy head or twisted neck, lack of coordination, inability to fly or dive, and complete or partial paralysis. Young birds are most commonly affected.
Infected wild birds can potentially transmit the virus to domestic poultry if there is contact.
The state Board of Animal Health is recommending that all poultry producers act to protect their operations. Those actions include restricting visitors and their vehicles; controlling movements associated with the handling and disposal of bird carcasses, litter, and manure; and monitoring poultry flocks for any signs of illness.
[Byline: Paul Walsh]
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[Virtually all birds are considered susceptible to infection with Newcastle disease virus (NDV; Fam. _Paramyxoviridae_). NDV has been categorized into 5 pathotypes based on clinical signs in infected chickens, designated: a) viscerotropic velogenic, b) neurotropic velogenic, c) mesogenic, d) lentogenic or respiratory, and e) subclinical enteric. - Mod.PMB]
[A location map of Minnesota may be accessed at <http://www.mapsofworld.com/images2008/printable-maps/minnesota-location-map.gif>
A map of the Minnesota lakes can be accessed at <http://www8.garmin.com/cartography/lakemaster/graphics/coveragemap.gif>.
Aerial view of Minnesota lake islands
<http://www.riverpointresort.com/cms/img/Aerial-1.jpg> - Mod.JW]
[see also:
Newcastle disease, wild birds - USA: (MN) susp. 20120809.1237146 Newcastle disease - Pakistan (04): (SD) peacock, RFI 20120807.1232621 Newcastle disease - Pakistan (03): peacock, susp. 20120730.1220062 Newcastle disease - Pakistan (02): vaccine failure, RFI
20120509.1127461
Newcastle disease - Pakistan: (Lahore) bird 20120311.1067221 Newcastle disease, pigeon - Italy (TC) OIE 20120309.10659834
2007
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Newcastle disease, pigeons - Russia (Arkhangelsk) 20071117.3724
2006
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Newcastle disease, poultry - UK (Scotland)(03): partridge:
20061015.2971
Newcastle disease, poultry - UK (Scotland)(02): conf 20061014.2950 Newcastle disease, poultry - UK (Scotland): susp 20061013.2934
2005
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Newcastle disease, pheasants - UK (England)(04): ex France
20050720.2089
Newcastle disease, pheasants - UK (England)(03): OIE 20050718.2069 Newcastle disease, poultry - Europe: OIE 20051112.3314
1997
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Disease, pheasants - UK (N. Ireland) 19970830.1847 Newcastle disease - UK (Hereford) 19970111.0045] .................................................pmb/mj/jw/ll
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