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人们对病毒性胃肠道疾病病原学和流行病学的了解远远超过他们控制或改变这些疾病过程的能力。有效的免疫预防是一个很棘手的问题。有许多障碍影响着疫苗发展的各个步骤。例如,有些病毒不能在组织培养上
The understanding of the etiology and epidemiology of viral gastrointestinal diseases goes far beyond their ability to control or alter these disease processes. Effective immunoprophylaxis is a thorny issue. There are many obstacles that affect the various stages of the vaccine’s development. For example, some viruses can not be cultured on the tissue