Resistance or susceptibility to Marek's disease virus is an inherited trait.

家禽对马立克氏病病毒的抵抗力或者感性可以遗传。

Marek's disease (MD) is a lymphoproliferative disease of chicken and has a great impact on poultry industry.

马立克氏病（MD）是鸡的一种淋巴组织增生性疾病，对养鸡业危害极大。

MD agar diffusion antigens were prepared by grinding the skins or feather follicles of dead or sick chickens due to Marek's disease.

利用马立克氏病病、死鸡的皮肤（羽囊）打碎、制成MD琼扩抗原。

Marek's disease (MD) is a malignant t lymphoproliferative disease of chicken and has been causing big losses in the poultry industry.

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。

Roundworm eggs, pox and marek's disease viruses, coccidia, and other infections materials can be carried on crates, footwear, and vehicles.

圆虫虫卵，痘和马立克氏病病毒，球虫及其他传染性物质，都可以由条板箱，鞋和运输工具携带。