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Influenza A Isolates -- United States, 1987

The first isolates of influenza A virus for the 1987-88 season have been reported in the United States. Subtyping of virus isolates is pending.

South Dakota. The first influenza A virus isolate of the season was obtained from a 15-year-old child in Sioux Falls. The specimen was collected on October 19.

California. Two isolates of influenza A have been reported from Los Angeles. Specimens were collected in late October from an 83-year-old woman and a 62-year-old man.

Wyoming. On October 29, a family physician practicing in Jackson, Wyoming, who is a member of the Sentinel Physician Network coordinated by CDC and the American Academy of Family Physicians submitted a positive influenza A specimen from a 6-year-old girl with influenza-like illness. Reported by: Veteran Administration Medical Center, Sioux Falls, South Dakota. BA Blue, MD, Jackson, Wyoming. Participating State Epidemiologists and State Laboratory Directors. WHO Collaborating Center for Influenza, Influenza Br, Div of Viral Diseases, Center for Infectious Diseases, CDC.

Editorial Note

Editorial Note: Serologic evidence of influenza A infection in the United States during August (possibly related to importation of the virus) and sporadic isolation of influenza B virus during the summer and fall of 1987 were previously reported (1). The present report documents influenza activity in the United States for the 1987-88 season. U.S. health-care providers should be alert for patients with influenza-like illness, which is characterized by sudden onset of fever and chills accompanied by respiratory symptoms such as sore throat or cough. Early collection and submission of specimens for laboratory isolation will permit detection of further spread.

  1. Centers for Disease Control. Outbreak of influenza-like illness in a tour group--Alaska. MMWR 1987;36:697-8, 704.

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