First Report of Myocastor coypus Infected with Staphylococcus cohnii

Figure 5

Histological observations of liver, spleen, and kidney tissues in BALB/c mice infected with the isolated bacteria: (a)-a1: normal group liver tissue, a2: in liver tissue, focal necrosis of hepatocytes is visible, with fragmented and dissolved cell nuclei and increased eosinophilic cytoplasm (indicated by black arrows), and a3: hyphae are visible in hepatocytes (indicated by blue arrows); (b)-b1: normal group spleen tissue, b2: in spleen tissue, the white pulp varies in size and shape, and extensive hemorrhages are visible in the red pulp (indicated by red arrows), and b3: extensive focal necrosis is visible within the white pulp (indicated by black arrows); and (c)-c1: normal group kidney tissue, c2: bacterial clumps are noted around renal glomeruli (indicated by blue arrows), and c3: extensive hemorrhagic infiltration is visible in the renal tubular interstitium (indicated by red arrows).

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