Attia M A
Virology and Immunology Unit, Cairo University, Egypt.
Antivir Ther. 1998;3(Suppl 3):1-9.
Hepatitis B and C are, and will remain for some time, major health problems in Egypt and the entire continent of Africa. Both infections can lead to an acute or silent course of liver disease, progressing from liver impairment to cirrhosis and decompensated liver failure or hepatocellular carcinoma (HCC) in a 20-30 year period. In addition, hepatitis B and C infection rates differ in different settings, and prognosis may be worse in conjunction with schistosomiasis in Egypt, malaria in Sudan and human immunodeficiency virus (HIV) in other African populations. Unlike hepatitis B virus (HBV), for which the prospects for controlling the spread of infection by vaccination are promising, prospects for development of an effective vaccine against hepatitis C virus (HCV) are limited. As well as screening of blood for transfusion and using sterile needles for injection, preventive measures should be undertaken to reduce the risk of contact (often described as community-acquired infection). Until more is known about the unidentified routes of transmission in tropical and subtropical settings it will be difficult to be specific about the kind of measures which may be effective. Success may largely depend on changing habits within the population. Prevention should be the main goal of current efforts until low-cost, effective therapies become available.
乙型肝炎和丙型肝炎在埃及乃至整个非洲大陆目前是且在一段时间内仍将是主要的健康问题。这两种感染都可能导致急性或隐匿性肝病病程,在20至30年的时间里从肝功能损害发展为肝硬化、失代偿性肝衰竭或肝细胞癌(HCC)。此外,乙型肝炎和丙型肝炎的感染率在不同环境中存在差异,在埃及,合并血吸虫病、在苏丹合并疟疾以及在其他非洲人群中合并人类免疫缺陷病毒(HIV)时,预后可能更差。与乙型肝炎病毒(HBV)不同,通过接种疫苗控制感染传播的前景很乐观,而开发有效的丙型肝炎病毒(HCV)疫苗的前景有限。除了对输血用血进行筛查以及使用无菌注射针头外,还应采取预防措施以降低接触风险(通常称为社区获得性感染)。在对热带和亚热带地区不明传播途径有更多了解之前,很难确定哪些措施可能有效。成功很大程度上可能取决于改变人群中的习惯。在有低成本、有效治疗方法可用之前,预防应是当前努力的主要目标。