spongiform

adjective [原级]海绵状（组织）的，多孔结构的

Bovine Spongiform Encephalopathy(BSE) is harmful to the health of bovine, the BSE subvirus can infect to human being.
疯牛病是一种严重危害牛类健康的疾病，它的感染因子可以传染给人类。