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. 2004 Jun;10(6):1030–1037. doi: 10.3201/eid1006.030852

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Figure A1 — Timeline of cases of severe acute respiratory syndrome by date of onset and chains of transmission, November 16, 2002-February 10, 2003, Foshan municipality, Guangdong Province, China. A: Index patient and family cluster. B: Family and healthcare workers cluster. C: Healthcare worker cluster at township hospital. D: Workplace cluster. Case-patients 6, 10, 18, and 26 had no contact history. Dark box: food handler, light box: healthcare worker.