DR. E. WALKER / SCIENCE PHOTO LIBRARY DR. E. WALKER / SCIENCE PHOTO LIBRARY
Bacterial endocarditis. Close-up of an infected artificial heart valve (Hancock type) showing bacterial endocarditis. When infection occurs early (within two months after surgery) it is likely that organisms have gained entry during the operative period. Staphylococcus epidermidis and S. aureus are the most common organisms responsible for this infection which is treated with antibiotic drugs.
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