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CDC influenza report no. 9, August 5, 1957
Filetype[PDF-2.58 MB]

  • Description:
    I. Summary of information – II. Epidemic and case reports – III. Progress reports – IV. Reports of influenza-associated deaths – V. Summary tables-cases and outbreaks

    "Further evidence of infection with Asian strain influenza has been obtained in Seattle, Washington, and Omaha, Nebraska. Both acute episodes occurred in late June. An increasing incidence of febrile respiratory disease has been reported in Mexico City. Asian strain virus has been identified in throat washings obtained at a girls’ school near the city. This is the first instance of a positive isolation of the strain in a North American country outside the U.S. Additional outbreaks of influenza-like illness has been reported from several children’s camps, a state mental hospital, and another jail population in California. A further instance of influenza-like illness among Air Force reservists in a summer training camp is also noted. It is of particular interest to note that several civilian areas of California are reported to be experiencing an abnormally increased respiratory illness rate for this season. An estimate of 5000 has been proposed for influenza-like illness in San Diego. An Oakland hospital reports 200 cases of influenza-like illness seen in the OPD during the past two weeks. The University of California at Berkeley has report an increased number of clinic visits for febeile respiratory disease in the past two weeks. Paired sera from this latter group has shown a diagnostic title rise by C-F for type A influenza. With the present Report a registry of influenza-associated deaths is begun. These necessarily represent only those deaths reported to the Influenza Unit. An effort will be made to present confirmatory evidence of influenza when available. Clinical histories and post-mortem reports with laboratory data will also be included in some detail when available." - p. 2

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