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Influenza-respiratory disease surveillance report no. 86, December 1970
  • Published Date:
    December 1970
Filetype[PDF-2.06 MB]

  • Corporate Authors:
    Center for Disease Control, Respiratory Diseases Surveillance Unit ; Center for Disease Control (U.S.), Laboratory Branch., Respiratory Virology Unit. ; United States, Public Health Service., Office of the Surgeon General., Advisory Committee on Immunization Practice. ; ... More ▼
  • Description:
    I. Surveillance summary -- II. Supplementary reports [A. Hong Kong Influenza - Anchorage, Alaska; B. Hong Kong Influenza - Homer, Alaska; ] -- III. International notes -- IV. Laboratory report -- V. Advisory Committee statement

    "Throughout the year the Respiratory Diseases Surveillance Unit keeps a close watch on the occurrence and spread of influenza in the United States and throughout the world. In an attempt to obtain as broad based a picture as possible of the spread of influenza, information is collected from a number of sources representing a variety of different viewpoints. These sources and their respective data are summarized in this report for the 1969-70 season. After the widespread influenza outbreaks in the United States in 1968-69 (see Influenza Surveillance Report H85, June 30, 1969), activity in the 1969-70 season was decidedly less extensive, although considerably more activity was encountered than expected. Even though 48 of the 50 states reported influenza in 1969-70 as compared with alISO states in the preceding season, only six states reported widespread activity as compared with 44 the preceding season. Influenza was first reported in the United States during the 1969-70 season in Alaska in early November with sporadic regional outbreaks occurring in that state in November, December and January. Scattered outbreaks also occurred in Puerto Rico in late November. The next state to report a significant outbreak was Vermont where regional outbreaks* occurred in January. In late January and February significant activity began to occur along the East Coast and in the Southeast. Also in late January isolated outbreaks were documented in Oregon, Washington and Hawaii. By early February significant rises in influenza and influenza-like illness were being noted in the East North Central and East South Central areas as well as in scattered areas throughout the rest of the county. Some of the Mountain States noted peak activity during late February and March. Although there seemed to be a progression cf illness from the East Coast westward, most states that encountered increased levels of illness dated peak illness levels within a relatively circumscribed period of time between January 24 and February 28 (Figure 1). This is considerably later than the experience in the 1968-69 season when the illness had reached its peak in most states by early January." - p. [1]

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