日本确认本季首起家禽禽流感疫情：京都府龟冈市一养鸡场约20万只蛋鸡将全部扑杀
日本农林水产省11月12日说，京都府龟冈市一家家禽饲养场的基因检测结果确认，该场家禽感染了高致病性禽流感病毒，京都府确认病毒为H5型。这是日本本季在家禽饲养场确认的首起高致病性禽流感疫情。
涉事养鸡场共饲养约20万只蛋鸡。11月11日上午，该场向京都府报告死亡鸡只数量增加，卫生部门对包括死鸡在内的10只鸡做简易检测，结果均呈阳性。京都府12日已开始扑杀该场全部蛋鸡，设施消毒等防疫处理预计约一周完成。
防疫安排方面，有关部门将该场周边半径3公里以内划为「移动限制区域」、半径3至10公里划为「搬出限制区域」，10公里范围内另有7家养鸡场、共约30万只家禽受到移动与搬出限制。农林水产省已开设防疫对策本部会议，农林水产大臣武部新呼吁做足预防发生与防止蔓延的对策；内阁官房长官木原稔在相关阁僚会议上表示将万全应对。
本季此前，日本已在北海道音更町与秋田县由利本荘市的野鸟尸体中检出高致病性禽流感病毒，家禽饲养场感染确认尚属首例。每年秋冬到次年春季是日本的禽流感流行季。
鸡蛋价格是另一个背景。农林水产省10月19日至21日的调查显示，全国每盒10个装鸡蛋平均价格为312日元，是2003年开始这项调查以来的最高纪录；年末需求旺季临近，疫情对鸡蛋供应的影响受到关注。
（来源：日本农林水产省）
Japan Confirms First Poultry Bird Flu Outbreak of the Season: About 200,000 Hens at a Farm in Kameoka, Kyoto to Be Culled
Japan's Ministry of Agriculture, Forestry and Fisheries said on November 12 that genetic testing had confirmed highly pathogenic avian influenza at a poultry farm in Kameoka, Kyoto Prefecture, and Kyoto Prefecture confirmed the virus was the H5 type. It is the first confirmed highly pathogenic bird flu outbreak at a poultry farm in Japan this season.
The farm keeps about 200,000 laying hens. On the morning of November 11, the farm reported an increase in dead birds to the prefecture, and simple tests on 10 birds, including dead ones, all came back positive. Kyoto Prefecture began culling all of the farm's hens on November 12, and disinfection and other control work is expected to take about a week.
Under the control measures, an area within a 3-kilometre radius of the farm was designated a movement-restriction zone and the area between 3 and 10 kilometres a shipment-restriction zone; seven other poultry farms within 10 kilometres, keeping about 300,000 birds in total, are also subject to movement and shipment restrictions. The agriculture ministry convened an emergency disease-control headquarters meeting, and Agriculture Minister Arata Takebe called for thorough measures to prevent outbreaks and stop the spread. Chief Cabinet Secretary Minoru Kihara said at a ministerial meeting that the government would ensure a complete response.
Earlier this season, the highly pathogenic virus had been found in wild bird carcasses in Otofuke, Hokkaido and Yurihonjo, Akita Prefecture, but this is the first confirmed case at a poultry farm. The autumn-to-spring period is Japan's bird flu season each year.
Egg prices form part of the backdrop. A ministry survey conducted from October 19 to 21 put the national average price of a pack of 10 eggs at 312 yen, the highest since the survey began in 2003, and with year-end demand season approaching, the outbreak's effect on egg supply is being watched.
(Source: Ministry of Agriculture, Forestry and Fisheries of Japan)
来源：日本农林水产省
发布：GSM·美国（发布链接）
图片来源：图：蛋鸡养殖场内的笼养蛋鸡（资料图，非涉事农场）。照片 CC BY-SA 3.0，作者 Maqi，经 Wikimedia Commons。 / Photo: Laying hens in cages at an egg farm (file photo, not the affected farm). CC BY-SA 3.0, by Maqi, via Wikimedia Commons.
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