Swine Influenza A at Fort Dix, New Jersey (January-February 1976). 3. Extent of Spread and Duration of the Outbreak
WALTER REED ARMY INST OF RESEARCH WASHINGTON DC DIV OF COMMUNICABLE DISEASE AND IMMUNOLOGY
Pagination or Media Count:
The extent and duration of transmission of influenza ANew Jersey76 virus at Fort Dix, New Jersey, was examined with use of titers of hemagglutination-inhibiting antibody to influenza AMayo Clinic74 Hsw1N1 antigen, as an index of infection. Five hundred ninety-three soldiers a 9.3 sample in basic combat training BCT were grouped in weekly cohorts by the date on which BCT was started. Cohorts with 11 of the 12 BCT cases of Aswine influenza began training on January 12, 19, and 26, 1976, respectively 9 - 19 of the trainees in these cohorts had titers of antibody to AMayo Clinic antigen of or 120. In five other cohorts without cases, which began training before January 12 or after January 26, 0-5 of trainees had titers of or 120. Titers observed in persons from military units not in BCT and in the civilian population of the post were not consistent with widespread transmission of the virus. Transmission of influenza ANew Jersey virus at Fort Dix probably occurred between mid-January and mid-February with little involvement of people outside of BCT units.
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