Ball Python Nidovirus: a Candidate Etiologic Agent for Severe Respiratory Disease in Python regius
ABSTRACT A severe, sometimes fatal respiratory disease has been observed in captive ball pythons (Python regius) since the late 1990s.In order to better understand this disease and its etiology, we collected case and control samples and performed pathological and diagnostic analyses.Electron micrographs revealed filamentous virus-like particles in