So the main feature is that a patient with a chronic evolution of infection has adaptive responses which are functionally impaired and certainly this is very important to allow virus persistence.
所以，主要特征是感染慢性进展的患者其获得性免疫应答在功能上受到损害，这对允许病毒持续存在非常重要。
AIM To observe the prevalence and clinical relevance of transfusion transmitted virus (TTV) infection in hemodialysis (HD) patients with chronic renal failure (CRF) and in professional blood donors.
目的观察输血传播病毒(TTV)和肝炎病毒在慢性肾衰(CRF)血液透析(HD)患者中的流行情况和感染相关因素。
RESULTS We found bacteria infection 7 cases, virus hepatitis 5 cases, acute rejection 3 cases, chronic rejection 1 case and drugs hepatitis 1 case.
结果：发现细菌感染7例，病毒性肝炎5例，急性排异3例，慢性排异1例，药物性肝炎1例。
So the main feature is that a patient with a chronic evolution of infection have adaptive responses which are functionally impaired and certainly this is very important to allow virus persistence.
所以，主要特征是感染慢性进展的患者其获得性免疫应答在功能上受到损害，这对允许病毒持续存在非常重要。
Objectives To explore the characteristics of hepatitis B virus genotypes in the subjects with chronic HBV infection.
目的探讨福州地区慢性HBV感染者的HBV基因型分布特征及其与病程的可能相关性。
Methods 24 patients with chronic or advanced schistosomiasis (experimental group) and 26 healthy volunteers (control group) all without hepatitis B virus infection were selected for the study.
方法随机筛选无乙肝病毒感染的慢性血吸虫病患者(实验组)24例，健康志愿者(对照组)26例。
Background & Aims: Broadly reactive neutralizing antibodies (nAbs) and multispecific T-cell responses are generated during chronic hepatitis C virus (HCV) infection and yet fail to clear the virus.
背景和目的：慢性HCV感染过程中能够产生广泛的中和性抗体（nAbs）和多特异性的T细胞反应，但仍然不能够清除病毒。
Incidence of hepatitis B virus (HBV) infection is much higher in maintenance hemodialysis (HD) patients than that in healthy controls or other chronic kidney disease patients who do not need HD.
维持性血液透析(血透)患者乙型肝炎病毒(HBV)感染率明显高于健康人群和慢性肾脏病非透析患者。
Incidence of hepatitis B virus (HBV) infection is much higher in maintenance hemodialysis (HD) patients than that in healthy controls or other chronic kidney disease patients who do not need HD.
维持性血液透析(血透)患者乙型肝炎病毒(HBV)感染率明显高于健康人群和慢性肾脏病非透析患者。
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