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去年P J Imperato向美国免疫实践顾问委员会(ACIP)的某些建议提出了挑战,特别是该委会建议儿童应当每年进行抗流感免疫,以避免高度危险的家庭接触。Imperato认为应密切注意对有高度罹病危险的个体接种更具有实际意义。ACIP只强调人工免疫的价值,却未提及自然免疫(患流感后获得的)。自然免疫对流行的严重程度的影响远远大于灭活疫苗所具的影响。自然免疫的效果已在群体中体现,在个人甚而更明显。 1969年1月间第一次在美国流行的香港流感导致了极高的死亡率,这和预期的结果一致。然而在英国和其余欧洲国家的大部分地区
Last year, PJ Imperato challenged some recommendations of the ACIP, in particular, that it recommended that children be given an annual anti-influenza immunization to avoid highly dangerous family contacts. Imperato believes it important to pay close attention to vaccination of individuals at high risk for morbidity. ACIP only emphasized the value of artificial immunity, but did not mention the natural immunity (acquired after suffering from the flu). The impact of natural immunity on the prevalence of the epidemic is far greater than the impact of inactivated vaccines. The effect of natural immunity has been reflected in the population, and even more pronounced in individuals. The first Hong Kong flu that hit the United States in January 1969 caused a high death rate, which was in line with the expected result. However, in most parts of the UK and the rest of Europe