美国国家种猪登记系统 NSR
猪繁殖呼吸系统综合症 PRRVS
猪多系统衰竭综合症 PWMS ; PMWS ; Postweaning Multisystemic Wasting Syn-drome
猪多系统衰竭综合征 Postweaning Multisystemic Wasting Syndrome
仔猪多系统衰弱综合征 Postweaning multisystemic wasting syndrome ; PMWS
猪健康监测系统 PHMS
猪呼吸系统疾病综合征 PRDC
自动母猪饲喂系统 Velos
猪中枢神经系统疾病 PCNS
仔猪多系统消耗综合症 PMWS ; Post-weaningmultisystemicwastingsyndrome
那样迅速的复制速度也增加了菌株进化的机会，使它们能够用种种方式避开猪的免疫系统。
That rapid replication rate also increased the chances of strains evolving in ways that allowed them to evade hog immune systems.
这些病毒在变异的每个阶段都会遇到猪自身免疫系统的顽强抵抗。
At every stage, the virus would meet stiff resistance from the pigs' immune systems.
国家医疗健康办公室最新统计显示，全国猪流感患儿中，有36人死亡，大多数患儿伴有脑瘫、发育迟缓等神经系统疾病的症状，也有部分患儿完全康复。
Federal health officials report that at least 36 children in the United States have died of swine flu; most had nervous system disorders like cerebral palsy or developmental delays.
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