Shanks G Dennis, Eslinger Melissa
Australian Defence Force Malaria and Infectious Disease Institute, Enoggera, Australia.
University of Queensland, School of Public Health, Brisbane, Australia.
Open Forum Infect Dis. 2019 May 6;6(7):ofz207. doi: 10.1093/ofid/ofz207. eCollection 2019 Jul.
Influenza rates for the US Army and West Point cadets showed that seasonal influenza was not necessarily an annual event, and there was little influenzal illness in the decade before 1918 except for 1911 and 1916. Annual records from 1862-1918 also indicated a similar paucity of influenzal illness before 1890.
美国陆军和西点军校学员的流感发病率表明,季节性流感不一定每年都会发生,在1918年之前的十年里,除了1911年和1916年,流感病例很少。1862年至1918年的年度记录也显示,1890年之前流感病例同样很少。