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Clostridiodes difficile infection (CDI) is the most important cause of healthcare-associated diarrhea. The decreasing trend of CDI from 15 % to 4 % observed at the Italian Hospital of Desio over a 10-year period is due to prevention strategies. Our data highlight the importance of surveillance studies to control CDI.

Clostridium like species, particularly Clostridium perfrigens, are the second most common causes of human anaerobic infections, including myonecrosis and bacteremia. Clostridium paraputrificum is an infrequent isolate, which has been identified in only 1% of reported cases of clostridial infections. We herein report a rare case of C. paraputrificum bacteremia in a 78-year-old Caucasian man diagnosed with an intestinal carcinoma and liver neoplastic lesions. The isolate was susceptible to chloramphenicol, meropenem, metronidazole, vancomycin, and resistant to clindamycin and penicillin, and the patient was successfully treated with metronidazole. Malignancy and inflammatory bowel diseases are often associated with clostridial bacteremia, which cannot be neglected.