Institute for Health Metrics and Evaluation, University of Washington

Assistant Professor, School of Public Health, The University of Hong Kong

Associate Professor, Livestock Products Technology

Yale University School of Public Health

Koret School of Veterinary Medicine, Hebrew University

University of Texas Medical Branch

Public Health Agency of Canada

Full-time Professor, Instituto de Biología, UNAM

Professor of Infectious Diseases, Washington State University

Department of Agriculture and Food, Western Australia