<s>[INST] Given an abstract text, please determine whether it contains any drug mentions. Provide a 'Yes' or 'No' answer based on the presence or absence of drugs. Abstract Text: Impact Of Ser-109, An Investigational Microbiome Therapeutic, On Stool Fatty Acid Metabolites In A Phase 3 Randomized Trial (Ecospor III) For Treatment Of Recurrent Clostridioides Difficile Infection (Cdi)[/INST] Yes</s>