摘要：A statistical study of the mortality from all causes and from respiratory diseases was carried out in an evaluation of the influenza epidemics in Italy from 1956 to 1973. Type A influenzaviruses were responsible for outbreaks every 2-3 years. Type B influenzavirus appeared every 4 years and accounted for a single noteworthy epidemic in 1962-63. From the analysis of data on both general mortality and respiratory mortality a better evaluation of the extent of the influenza outbreaks could be made. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (456K), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References . 401 402 403 404 405 406
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