Liver of rabbit infected with S. aureus: (a & b) showing congestion, hyperplasia of bile ducts, perivascular edema, focal degeneration, and necrosis of hepatocytes, and in (b) large abscess formation. (c) liver treated with an antibiotic, showing mild hyperplasia of bile ducts and congestion of portal blood vessels. (d) liver treated with antibiotic+ probiotic. showing pronounced improvement of hepatic tissue. H&E. X 100.