1. Diane Meyer, Matthew P. Shearer, and Jennifer B. Nuzzo are with the Johns Hopkins Center for Health Security, Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD. Yi-Chien Chih is with the Division of Preparedness and Emerging Infectious Diseases, Taiwan Centers for Disease Control (CDC), Taipei. Yu-Chen Hsu is with the Division of Planning and Coordination, Taiwan CDC. Yung-Ching Lin is with the Office of Preventive Medicine, Taiwan CDC.