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Update: Influenza Activity -- United States

Ten states reported widespread outbreaks of influenza-like illness, and 16 states reported regional outbreaks for the week ending February 2, 1985 (Figure 1). This was an increase in the number of states reporting widespread outbreaks from one state for the week ending January 19 and seven for the week ending January 26 (1).

The most recent states to report their first isolates of influenza type A(H3N2) virus for the season were Nebraska and Rhode Island. States reporting type A(H3N2) this season are Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Illinois, Iowa, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Utah, Washington, West Virginia, and Wisconsin.

During the last week of January, isolates of influenza type B virus from sporadic cases were reported for the first time this season from New York and South Dakota. Four other states (Hawaii, New Jersey, Ohio, and Texas) have reported type B viruses this season. Reported by V Pallidino, MD, S Litson, PhD, K Szabo, MD, Nassau County Medical Center, Long Island, New York; P Dennehy, MD, Providence Hospital, Providence, Rhode Island; State and Territorial Epidemiologists; State Laboratory Directors; Other collaborating laboratories; Statistical Svcs Br, Div of Surveillance and Epidemiologic Studies, Epidemiology Program Office, Influenza Br, Div of Viral Diseases, Center for Infectious Diseases, CDC.


  1. CDC. Update: influenza activity--United States. MMWR 1985;34:62-3.

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