Providencia spp are a Gram-negative aerobic proteobacteria which is a normal inhabitant of dog skin and gastrointestinal tracts.
Transmission of these bacteria between dogs is usually by aerosol, skin contamination and spread by insect vectors such as filth flies.
Species which are pathogenic to dogs include:
- Providentia rettgeri
- Providencia alcalifaciens
- Providencia stuartii
Diarrhea has also been reported and although there are contradictory opinions about the role of this organism as the enteric pathogen, it seems that P. alcalifaciens should also be taken into consideration in the routine bacteriological diagnostics of diarrhoea in dogs.
Diagnosis is based on culture of the organism and PCR assays if available.
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