中国禽流感疫情现状及防控策略.

贾幼陵
2007.11
Beijing
一、中国家禽业概况
1 Brief of Poultry Industry in China
1.1. Overview of China’s poultry sectoral development

No. of poultry in pent increased 3-8% annually since 1980
Broilers
肉鸡分布
feature：
different poultry concentrate in different regions
蛋鸡分布
Hens
Waterfowls
水禽分布
Shandong, Liaoning, Jinlin, etc.
Shandong, Hebei, Henan, etc.
Share of poultry farms (households) over 2000 birds increased from 40.9％in 1999 to 49.5% in 2004


600,000.00 500,000.00 400,000.00 300,000.00 200,000.00 100,000.00 0.00 1980 1985 1990 1995 2000 2006 活鸡
In 2005，15.198 billion birds raised，5.333 billion in pent at the end of the year, including 4.36 billion chicken，730 million duck，making up 26.5％and 69.1% of the world total respectively In 2006，15.541 billion birds raised, 5.365 billion in pent at the end of the year
Number of birds( units: ten thousands)
野鸟数量
Number of wild birds (units: thousand)
发病数
Number of infected animals
死亡数
Number of deaths
扑杀数
Number of culled animals
死亡数
Number of Deaths (Wild Birds)
2004 2005 2006 2007 合计
Total
16 12 7 3 22
50 31 10 3 94
14.49 15.82 9.10 2.30 41.71
12.91 15.46 4.70 2.17 35.24
904.5 2257.12 298.52 21.3 3481.44
图1 1980பைடு நூலகம்2006年中国鸡年末存栏变化情况（单位：万羽）
Fig. 1 Chicken yearend stock changes in China between 1980 and 2006（Unit：ten thousand）
图2 家禽饲养区域分布情况
Fig. 2 Regional Distribution of Poultry Industry
中国禽流感疫情现状及防控策略
Situation and Strategies on HPAI Prevention and Control in China
国家首席兽医官 农业部兽医局局长
Jia YouLing National CVO Director-General, Veterinary Bureau Ministry of Agriculture, P.R. China
In 1996，first H5N1 AIV isolated from geese in China. In Jan 2004, first H5N1 AI infection detected in Guangxi.

From Jan 2004 through Oct 2007，94 HPAI cases of domestic birds founds in 22 provinces，34.8 million birds culled. 24 human cases of HPAI detected in China’s mainland, 16 of which died Due to implementation of integrated prevention & control measures combining vaccination and cull, no. of cases and frequency for HPAI Dropped dramatically: 50 cases in 2004, 31 in 2005, 10 in 2006, and 3 so far in 2007
Hunan, Hubei, Guangdong, Fujian, etc.
二、中国高致病性禽流感疫情状况
2. Situation of HPAI in China 2.1. AI profile in China

As of today, no H7 infection detected in China

表1 China家禽高致病性禽流感发生概况
Table 1. Poultry HPAI Outbreaks in China from 2004 to 2007
疫情省 数
Number of infected provinces
年份
Year
疫点 数
Number of infected spots
禽鸟数量（单位：万羽）
0 6.345 3.641 0 41.71
HA gene of the H5N1 viruses isolated in 2005-2006
Wild birds clade (2005-2006, BHG/QH/06)
Waterfowl clade (2005-2006, DK/HuB/05) Xinjiang Clade (2005, CK/XJ/05 )