Warning: New Research Indicates That Your Pet Dog or Cat Could Be Spreading Deadly Superbugs

New research reveals that pet dogs and cats are significant carriers of antibiotic-resistant bacteria, facilitating the spread to humans. The study, which analyzed samples from pets and owners in Portugal and the UK, found evidence of direct transmission of multidrug-resistant bacteria, underscoring the need for comprehensive monitoring and improved hygiene practices in pet-owning households.

The study has found evidence of multidrug-resistant bacteria being passed between sick cats and dogs and their healthy owners in Portugal and the UK, raising concerns that pets can act as reservoirs of resistance and so aid in the spread of resistance to vital medicines. Ms. Menezes and colleagues tested fecal and urine samples and skin swabs from dogs and cats and their owners for Enterobacterales and carbapenems . The prospective longitudinal study involved five cats, 38 dogs, and 78 humans from 43 households in Portugal and 22 dogs and 56 humans from 22 households in the UK.

In five households, one home with a cat and four with dogs, both pet and owner were carrying ESBL/AmpC-producing bacteria. Genetic analysis showed the strains to be the same, indicating that the bacteria passed between the pet and the owner. In one of these five households, a dog and owner also had the same strain of antibiotic-resistantwere resistant to third-generation cephalosporins, carbapenems, and several other families of antibiotics.

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