1 Division of Gastroenterology, Internal Medicine Department, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
2 Mycobacteria Laboratory, Medical Microbiology Department, Institute of Microbiology, Health Sciences Center, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
3 Unit of Confocal Microscopy, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
4 Division of Gastroenterology, Internal Medicine Department, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil; D'Or Institute for Research and Education (IDOR), Rio de Janeiro, Brazil.