PMC7660240_01
BAAR visualization by Ziehl-Neelsen stain.
acmi-2-161-g001.jpg
PMC7660240_01_acmi-2-161-g001.jpg
F1
Gram stain showed bacilli characterized by dubious features that were confirmed by acid fast stain, Ziehl-Neelsen staining (Fig. 1), which highlights the bacilli-acid-alcohol-resistant (BAAR).
Colonies of 
M. vaccae
 on a blood agar plate.
acmi-2-161-g002.jpg
PMC7660240_01_acmi-2-161-g002.jpg
F2