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Article: Update: influenza activity - United States and worldwide, 1993.
- Article from:
- MMWR. Morbidity and Mortality Weekly Report
- Article date:
- October 1, 1993
CopyrightCOPYRIGHT 1993 U.S. Government Printing Office. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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From October 1992 through February 1993, influenza activity was reported at moderate levels worldwide. Epidemic or outbreak levels of influenza activity were associated with either influenza B or influenza A(H3N2) in many parts of the world. Isolation of influenza A(H1N1) occurred less frequently. This report summarizes worldwide influenza activity reported from March through mid-September 1993 and makes recommendations for vaccination schedules in the United States.
North America and Europe. In most countries, influenza activity peaked in late February or early March and was associated with isolation of influenza B viruses. In March, an increase in the isolation ...