Dr Jones' letter concerning our article points out the need for a correction in the "Methods" section. We had reported bright or brilliant fluorescence of most or all bacteria as criteria for a positive ACB test result. In fact, bright or brilliant fluorescence of at least 1% of bacteria per microscopic field constituted a positive result. The procedure we used was slightly modified from that originally reported by Thomas et al1 and identical to that used by Hawthorne and co-investigators at our institution.2 We sincerely apologize for this error and thank Dr Jones for his careful review of our methodology.
Merritt JL, Keys TF. The Antibody-Coated Bacteria Test-Reply. JAMA. 1982;248(12):1450. doi:10.1001/jama.1982.03330120020013
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