1Research Coordinator, Infection Prevention and Control, Public Health Ontario, Santé Publique Ontario, Ottawa, ON, Canada

2Public Health Physician, Environmental and Occupational Health, Public Health Ontario, Santé publique Ontario, Toronto, ON, Canada

3Occupational Medicine Physician, Environmental and Occupational Health, Public Health Ontario, Santé publique Ontario, Toronto, ON, Canada

4Clinical Microbiologist, Public Health Laboratories, Public Health Ontario, Santé publique Ontario, Toronto, ON, Canada

5Public Health Dentist, Health Promotion, Chronic Disease and Injury Prevention, Public Health Ontario, Santé publique Ontario, Toronto, ON, Canada

S. Singhal, Public Health Dentist, Health Promotion, Chronic Disease and Injury Prevention, Public Health Ontario, Santé publique Ontario, 480 University Avenue, Suite 300, 480 Avenue University, Bureau 300, Toronto, ON M5G 1V2, Canada. Email: [email protected]