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CDC influenza surveillance report no. 47, April 22, 1959
  • Published Date:
    April 22, 1959
Filetype[PDF - 1.81 MB]


Details:
  • Personal Authors:
  • Corporate Authors:
    Communicable Disease Center (U.S.), Influenza Surveillance Unit.
  • Series:
    CDC influenza surveillance report ; no. 47
  • Document Type:
  • Description:
    I. Summary of information -- II. Current analysis of influenza in the United States -- III. Current analysis of influenza and pneumonia mortality

    "Influenza and pneumonia deaths reported from 108 United States cities rose sharply above the seasonal threshold during the week ending April 4, peaked during the week ending April 11, and fell back toward the normal level during the following week. Closer examination of these reports reveals that the upswing was due primarily to increases in reported deaths in New York City (Middle Atlantic region) and Detroit and Chicago (East North Central region). Other urban areas in these regions showed only small increases in numbers of influenza and pneumonia deaths during the two week period. Much of the excess mortality occurred in persons over 65 years of age in all three cities, apparently reflecting spread of influenzal illnesses into age groups older than those that have been primarily affected by the disease in the past three months. In most States, however, influenza-like illness still appears to be affecting persons of school and college age, primarily, and industrial absenteeism continues to remain at normal seasonal levels. Through April 22, 1959, the Influenza Surveillance Unit has learned of laboratory identicications of Type B influenza in 20 states, of Type A (Subgroup unspecified) influenza in 5 states, and of Asian (A2) influenza in 5 states. Adenoviruses have recently been identified from cases of influenza-like illness in Alaska and Mississippi. Altogether, 32 states have now experienced outbreaks or increased prevalence of illnesses resembling influenza since January 1959." - p. 2

  • Supporting Files:
    No Additional Files