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1990年10月22～26日,是美国成年人计划免划宣传周,每年开展这项活动的目的是强调成年人免疫的重要性。美国计划免疫工作的开展,相当数量地减少了儿童预防疾病的发生,但在幼年时没被传染上该种疾病或没有进行预防接种的成年人患病的危险性很高,由于年龄、职业和生活方式等因素以及某些慢性疾病发生了变化,一些疫苗可预防的疾病(如:乙肝)主要影响≥20岁年龄组(表1),而
From October 22 to October 26, 1990, it is a program for adults in the United States to plan a free publicity week. Each year, the purpose of this activity is to emphasize the importance of adult immunity. The planned immunization efforts in the United States have considerably reduced the incidence of childhood preventable diseases. However, adults who have not or at least have not been vaccinated at an early age are at a very high risk of being ill because of age, occupation and Lifestyle and other factors as well as some chronic diseases have changed, some vaccine-preventable diseases (such as: hepatitis B) mainly affect the age of 20 years (Table 1), and