PMC9816765_01
Microscopic image of a Gram-stained smear of S. moniliformis from colonies growth on blood agar medium (Columbia agar; Becton Dickinson, Franklin Lakes, USA), demonstrating pleomorphic Gram-negative rods in chains and clumps with irregular bulbar swellings. Magnification, x 1000.
gr1.jpg
PMC9816765_01_gr1.jpg
fig0005
After 72 h incubation in 5 % CO2 at 37  C, small, gray colonies grew on sheep blood agar (Fig. 1).