Final answer:
Yersinia enterocolitica infections are usually self-limiting and generally require only supportive care, but antibiotics may be used in severe cases.
Step-by-step explanation:
For Yersinia enterocolitica infections, the statement that they are usually self-limiting but can be treated with antibiotics is true. While the infections are normally relatively mild and self-limiting, necessitating primarily supportive care such as rehydration, severe cases may require antibiotic intervention. The causative agent of this bacterial infection is a gram-negative rod known for causing gastroenteritis, typically through the fecal-oral route via contaminated food or water. In severe instances, such as with bacteremia or systemic disease, antibiotics such as fluoroquinolones, aminoglycosides, doxycycline, and trimethoprim-sulfamethoxazole may be prescribed. Foodborne illnesses due to Y. enterocolitica are characterized by symptoms like fever, nausea, and diarrhea, but most recoveries occur within a week without the need for antibiotics.