in contrast to urogenital and fecal swabs, and
bronchoalveolar lavage was positive. Viral RNA was detected in
the lungs, as well as conjunctiva, nasal mucosa, tonsils, pharynx,
trachea, bronchus and mediastinal lymph nodes when a combination
of inoculation routes was used. No viral RNA was detected in further non-respiratory tissue samples. This correlates with the occurrence of bright red lesions throughout the lower respiratory tract, but not other organs. Microscopically, a thickening of alveolar septae by edema fluid and fibrin, with small to moderate numbers
of macrophages and neutrophils was observed. Viral antigen was found in type I and II pneumocytes, as well as in alveolar macrophages