乙肝病毒感染数量的一个数学模型

乙型肝炎是由乙型肝炎病毒(HBV)引起的肝病,该病毒干扰肝功能并造成病理损害.一小部分受感染者无法消灭该病毒而成为慢性感染,进而面临极高的死于肝硬化和肝癌的危险.乙型肝炎病毒通过与受感染者的血液或体液接触传播,这与人类免疫缺陷病毒(艾滋病毒)的方式相同.但是,乙型肝炎病毒的感染性比艾滋病毒高50至100倍.接种乙型肝炎疫苗是预防乙型肝炎的主要方法.如何有效防控乙肝的传染,不只是政府的事,也是每个国民应关注的问题.文章建立一个乙肝病毒传染的数学模型,并对模型进行实证分析;同时,对乙肝病毒的传染也做了一个预测.

A Mathematical Model of HBV Infections

Hepatitis B is a liver disease caused by the hepatitis B virus （HBV）. The virus interferes with the functions of the liver and causes pathological damage. A small percentage of infected people cannot get rid of the virus and become chronically infected -these people are at higher risk of death from cirrhosis of the liver and liver cancer. HBV is spread by contact with blood or body fluids of an infected person ＆quot; the same way as the human immunodeficiency virus （HIV）. However,HBV is 50 to 100 times more infectious than HIV. The hepatitis B vaccine is the mainstay of hepatitis B prevention. How to effectively control and prevent hepatitis B infection,not only the government,also everyone in the country should focus on problems. This paper established a mathematical model of hepatitis B virus （HBV ） infection,and made an empirical analysis on the model;Furthermore,we also made a prediction for the infection of hepatitis b virus.