1 Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC, United States.
2 Department of Microbiology, Immunology, and Tropical Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States.
3 Department of Cellular Microbiology, Research Center Borstel, Leibniz Lung Center, Borstel, Germany.
4 Department of Immunochemistry and Biochemical Microbiology, University of Lübeck, Lübeck, Germany.