aDivision of Infectious Diseases, Department of Medicine, NYU Grossman School of Medicine

bDepartment of Infection Control, Bellevue Hospital Center, New York City Health and Hospitals

cDepartment of Infection Prevention and Control, NYU Langone Health, New York City, New York, USA

Correspondence to Michael S. Phillips, 545 First Avenue, SC-1 173, New York, NY 10016, USA. Tel: +1 646 501 0063; e-mail: [email protected]