TRENDS AND EPIDEMICS OF INFLUENZA AND PNEUMONIA, 1918-1951
TRENDS AND EPIDEMICS OF INFLUENZA AND PNEUMONIA, 1918-1951
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DOI：
10.2307/4587915
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发表时间：
1951-01-01
影响因子：
3.3
通讯作者：
LEHMANN, J
中科院分区：
文献类型：
--
作者：
COLLINS, SD;LEHMANN, J
本研究回顾了 1918-19 年大流行以来流感和肺炎的死亡率趋势。用于衡量流行病程度的数据是美国各个地理区域大城市的每周流感肺炎死亡率超过正常季节性预期。自 1918-19 年以来，已发生过 20 次不同规模的流行病。 1918年以后的十年里的流行病总体上比“30年代”更大。 1937 年之后，除了 1943-44 年的一次外，流行病明显较小。每个地理区域都观察到相同的总体趋势。除流行病外，登记州的流感和肺炎死亡率已从 1900 年的每 10 万人中近 200 人下降到 1950 年的 34 人；下降幅度最大的部分发生在 1937 年之后，当时治疗这些疾病的新方法开始使用。
This study is a review of the trend in the death rates from influenza and pneumonia since the pandemic of 1918-19. The data used to measure the extent of an epidemic were weekly influenza -pneumonia death rates in excess of a normal seasonal expectancy for large cities in various geographic sections of the United States. There have been 20 epidemics of varying size since 1918-19. Epidemics in the decade following 1918 were generally larger than those in the ''30'' s. After 1937 the epidemics were distinctly smaller with the exception of one in 1943-44. The same general trend was observed in each of the geographic sections. Aside from epidemics the death rate from influenza and pneumonia in the registration states has decreased from nearly 200 per 100,000 in 1900 to 34 in 1950; the steepest part of the decline occurred after 1937 when newer methods of treatment of these diseases came into use.