从应答方面来讲，动物的免疫防御系统又划分为先天性免疫细胞及分子和适应性免疫细胞及分子。
Animal immunizing and defending system is also divided into geneogenous immunizing cells and molecules & adaptive immunizing cells and molecules on response.
研究人员认为，骨髓干细胞可以减少呼吸道的炎症反应，减轻免疫系统对严重的哮喘的免疫应答。
The researchers believe the bone marrow stem cells reduce inflammation in the airways, the immune system's normal response to severe cases of asthma.
喷雾疫苗有更强免疫应答但也小有危险，病毒在免疫功能损伤者可迅速繁殖。
The spray gives a stronger immune reaction but carries a small risk that the virus will multiply too quickly in people with compromised immunity.
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