| 1. | Outside the bovine host, the organism can be readily cultured .
这种微生物在宿主牛体外，容易被培养。 |
| 2. | The envelope is derived in most cases from the cytoplasmic membrane .
大多数病毒的囊膜取自宿主细胞膜。 |
| 3. | Man is host to a variety of pathogenic bacteria, protozoa, and viruses .
人是各种致疾的细菌、原生动物以及病毒的宿主。 |
| 4. | Only the dorsal lip of the blastopore could induce altered development in the host .
只有胚孔的背唇能够诱导宿主发育的改变。 |
| 5. | Cysts should be excised and sterilized to avoid ingestion by the definitive host .
应该切除包囊并予以销毁，以防止被最终宿主食入。 |
| 6. | Animal viruses generally are phagocytosed and gain entry to host cells from vacuoles .
动物病毒则一般是吞噬后从空泡进入宿主细胞内。 |
| 7. | By this stage the host cell shows characteristic vacuolation and other cytopathic effects .
到此阶段，宿主细胞显示典型的空泡化和其它细胞病理效应。 |
| 8. | Glycoproteins act as important antigenic determinants to which host immunity is often directed .
糖蛋白是重要的抗原，决定族宿主的免疫性常常针对着它们。 |
| 9. | An antigen is any substance capable of eliciting an immune response when injected into a host animal .
抗原是任何注射于宿主动物体内都能引起免疫应答的物质。 |
| 10. | The morbidity and mortality of the host species is usually proportional to the number of cocidial cocysts ingested .
宿主的发病率和死亡率与吃进球虫卵囊的数目，通常是成正比的。 |
