Regarding the treatment of recurrent C.difficile infection, which of the following statements is correct 1. All patients who develop recurrent diarrhea when they stop taking metronidazole or vancomycin have recurrent C.difficile infection. 2. A positive toxin assay in a patient with minimal or no symptoms should not prompt treatment. 3. Lactobacillus species and Staphylococcus aureus have shown efficacy in reducing the incidence of simple antibiotic-associated diarrhea 4. No passive or active immunization has been used to treat patients with recurrences yet. 5. Tolevamer is a high-molecular-weight,inert polymer that has direct antimicrobial activity. Ans (2) --

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