In the spring of 1925, stimulated by the encouraging reports of Drs. George and Gladys Dick, I sounded several parents among my private patients on the subject of immunizing their children against scarlet fever, and finding a most encouraging response from them I sent out to a selected group a form letter, stating how matters stood and expressing my willingness to undertake the work free of charge for those who wished to have it done. Nothing was guaranteed further than that it looked like a hopeful procedure which promised excellent results for the future.
Through the generosity and the helpful cooperation of the department of health of New York City, material was obtained and 122 children between the ages of 3 and 15 years were tested. Of these, 101 gave positive reactions. This large proportion—nearly 83 per cent—seems excessive when compared with other reports, but on consideration of the nature
Bull HG. REPORT ON A GROUP OF FIFTY CHILDREN DICK-TESTED EIGHT YEARS AFTER IMMUNIZATION AGAINST SCARLET FEVER. JAMA. 1933;101(5):363. doi:10.1001/jama.1933.27430300001010
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