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. 1998 Apr 17;47(14):280-4.

Update: influenza activity--United States and worldwide, 1997-98 season, and composition of the 1998-99 influenza vaccine

Centers for Disease Control and Prevention (CDC)
  • PMID: 9572668
Free article

Update: influenza activity--United States and worldwide, 1997-98 season, and composition of the 1998-99 influenza vaccine

Centers for Disease Control and Prevention (CDC). MMWR Morb Mortal Wkly Rep. .
Free article

Abstract

In collaboration with the World Health Organization (WHO), the WHO international network of collaborating laboratories, and state and local health departments, CDC conducts surveillance to monitor influenza activity and to detect antigenic changes in the circulating strains of influenza viruses. This report summarizes surveillance for influenza in the United States and worldwide during the 1997-98 influenza season and describes the composition of the 1998-99 influenza vaccine.

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