禽流感是目前影响世界养禽业的最严重的疫病。
Avian influenza (AI) is a serious disease of poultry throughout the world.
马立克氏病(MD)是鸡的一种恶性T淋巴细胞增生性疾病，对养禽业危害极大。
Marek's disease (MD) is a malignant t lymphoproliferative disease of chicken and has been causing big losses in the poultry industry.
鸡球虫病是鸡球虫寄生在细胞内的原虫疾病，给养禽业所带来的经济损失较为严重。
The avian coccidiosis is a cytoplastic entozoic parasite disease and may cause severe economic loss of poultry industry.
新城疫(ND)和传染性支气管炎(IB)一直是危害我国养禽业的两大重要病毒性传染病。
Newcastle disease (nd) and Avian infectious bronchitis (IB) are both very important viral infectious diseases that endanger seriously the raising-chickens' industries in our country all along.
而低致病力禽流感病毒同样可以给养禽业带来灭顶之灾，对人类的威胁同样严重，尤其是H9亚型禽流感。
But the low pathogenicity bird flu virus may bring the total destruction similarly to the poultry raising business, is similarly serious threat to humanity, particularly H9 hypotype bird flu.
H9N2亚型禽流感病毒在全世界范围内广泛流行，不仅给养禽业造成了巨大的经济损失，而且对人类健康造成威胁。
H9N2 subtype avian influenza viruses (AIV) have widely spreaded in the world. It has made not only huge economic losses for poultry industries but damage for human being's health.
禽类胚胎性疾病是一类由多病原引起的综合性疾病，可造成禽胚发育受阻，胚胎死亡，孵化率降低等现象，导致养禽业的重大经济损失。
The disease of avian embryo is a synthetical disease which can cause the increase of embryo death and decrease of incubation rate and is fatal to economy.
当前的主要健康风险涉及与受感染禽类密切接触者，例如在庭院放养禽类的家庭以及在菜市场或鲜活动物市场工作的养鸡业工人。
The main health risk currently is to people who are in close contact with infected poultry, such as families with backyard flocks and poultry workers in wet markets or live animal markets.
当前的主要健康风险涉及与受感染禽类密切接触者，例如在庭院放养禽类的家庭以及在菜市场或鲜活动物市场工作的养鸡业工人。
The main health risk currently is to people who are in close contact with infected poultry, such as families with backyard flocks and poultry workers in wet markets or live animal markets.
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