I. Summary -- II. Methods -- III. Results -- IV. Discussions -- V. State laboratory reports -- VI. Supplementary reports [A. Influenza B - Albuquerque, New Mexico; B. Influenza A2 - St. Paul Island, Alaska; C. Reye's Syndrome - New England and New York State; ] -- VII. Laboratory report - WHO International Influenza Center for the Americas [A. Hemagglutination-inhibition Characteristics of Influenza A and B Strains Isolated During 1970-71; B. Revision of Influenza Virus Nomenclature; C. Collection and Shipment of Specimens for the Diagnosis of Viral Respiratory Diseases] -- VIII. Advisory Committee statement

"From March 1970 through July 1971, influenza activity in the United States decreased markedly from the epidemic levels that were present the previous 3 years. However, widespread outbreaks of influenza occurred in a number of states. In a majority of these outbreaks, virus similar to influenza B/Mass/66 was demonstrated to be the responsible agent. Influenza B was also prevalent in Western Europe, while influenza A was more frequently seen in the Southern Hemisphere." - p. [1]

Section VIII, Advisory Committeee statement also has title: Recommendation of the Public Health Service Advisory Committee on Immunization Practices: Influenza vaccine (July 1971; Published MMWR: Vol. 20. No. 29. 1971).

Influenza Surveillance Reports

United States