Swabs collected from hospitalised people found microbes shared with pets at home showing same antibiotic resistance
In order to find out whether cats and dogs play a role in spreading MDROs, researchers collected swabs from 2,891 patients hospitalised and from any dogs and cats that lived in their households.
Genetic sequencing was used to identify the species of bacteria in each sample and the presence of drug-resistant genes. Overall, 30% of hospital patients tested positive for MDROs. The rate of dog ownership was 11% and cat ownership 9% in those who tested MDRO-positive. Pet owners were asked to send swab samples of their pets and more than 300 did so. Of these samples, 15% of dogs and 5% of cats tested positive for at least one MDRO. In four cases, these microbes were found to be of the same species and showed the same antibiotic resistance between pets and their owners.
Whole genome sequencing confirmed that only one of the matching pairs were genetically identical in a dog and its owner. “Although the level of sharing between hospital patients and their pets in our study is very low, carriers can shed bacteria into their environment for months, and they can be a source of infection for other more vulnerable people in hospital such as those with a weak immune system and the very young or old,” says Hackmann.
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