Airborne spores’ dissemination of a swine associated Clostridioides difficile clone

Alves, Frederico; Cano, Manuela; Brondani, Greice; Nunes, Alexandra; Oleastro, Mónica

http://hdl.handle.net/10400.18/8483

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Abstract(s)

This study supports the airborne dissemination of Clostridioides difficile spores. Of the sieve impaction samples collected at a swine production unit, 66.7% were positive and all belonged to the predominantly established clone. Spores' density varied according to the characteristics of the animal population, suggesting the possibility of airborne transmission.

Highlights: Overall, 66.7% (4/6) of the impaction air samples were positive for C. difficile; All air samples from the farrowing and weaning piglets' units were positive; All C. difficile positive samples belonged to the same toxigenic RT033 clone; Bacterial spores count correlate with animal colonization rate; Aerial dispersion might contribute for the environmental spread of C. difficile.