Abstract
The role of fungal colonizers of the gastrointestinal tract during disease states is not well understood. Antibiotic treatment renders patients highly susceptible to infection by the bacterial pathogen C. difficile while also leading to blooms in fungal commensals, setting the stage for trans-kingdom interactions. Here, we describe a murine model of Candida gastrointestinal colonization coupled to a C. difficile infection (CDI) model, the measurement of CFU of both organisms, and collection of cecum and colon contents for the purpose of quantifying C. difficile toxin production. Additionally, we describe how to induce and purify C. difficile spores.
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