About the Authors
New York City Department of Health and Mental Hygiene, New York, New York, United States of America
The authors have declared that no competing interests exist.
DRO, RTH, and FM conceived of the study. DRO, RTH, DW, and FM designed the study. DRO, KK, and FM analyzed the data. All authors contributed to writing the paper. DRO, RTH, MP, and KK collected data or performed experiments for this study. DRO, RTH, MP, and KK participated in the rotation of analysts who clean, analyze, and report data daily. RTH oversaw the syndromic surveillance unit that collected the data.