1 Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY; Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY. Electronic address: [email protected].
2 National Influenza Centre, Department of Arbovirology, Emerging and Re-emerging Infectious Diseases, Uganda Virus Research Institute, Entebbe, Uganda.