Mass Smallpox Vaccination and Cardiac Deaths, New York City, 1947

摘要

In April 1947, during a smallpox outbreak in New YorkCity (NYC), >6 million people were vaccinated. To deter-mine whether vaccination increased cardiac death, wereviewed NYC death certificates for comparable periods in1946, 1947, and 1948 (N = 81,529) and calculated adjust-ed relative death rates for the postvaccination period. Noincreases in cardiac deaths were observed