1. Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
2. Marie Bashir Institute for Infectious Diseases and Biosecurity and Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
3. Centre for Infectious Diseases and Microbiology-Public Health, Institute of Clinical Pathology and Medical Research, Westmead Hospital, Sydney, New South Wales, Australia
4. Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA