在一般病毒性疾病中,抗体能预防感染,但登革热例外,抗体能加重此病。但对已发生的病毒感染,抗体则不起作用。细胞介导免疫的作用是排除病毒感染的细胞,如这种排除是在病毒未成熟以前,病毒感染就会流产,感染也就会被治愈。T细胞识别抗原是受主要组织相容抗原的限制。现在非常有意思的工作是研究 In general viral diseases, antibodies prevent infection, but with the exception of dengue, antibodies can aggravate the disease. However, the virus has occurred, the antibody does not work. The role of cell-mediated immunity is to exclude virus-infected cells, such as this exclusion is not mature before the virus, the virus will abortion, the infection will be cured. T cell recognition antigens are limited by major histocompatibility antigens. The very interesting job right now is research