Upper respiratory tract disease (URTD) is one of the most common causes of disease in cats and also among the most common causes of euthanasia in animal shelters. The objective of this study was to compare the efficacy of amoxicillin-clavulanic acid, cefovecin, and doxycycline in shelter-housed cats with clinical signs of URTD. Cats were randomly assigned to 3 treatment groups of 16 cats each. Conjunctival and nasal swab specimens were obtained for culture and susceptibility testing. Different parameters - oculonasal discharge, sneezing, coughing, dyspnea, demeanor, and food intake - were scored twice daily for 14 days.
The most common bacterial isolates found were Mycoplasma spp. (n=22) and Bordetella bronchiseptica (n=9). The cats treated with amoxicillin-clavulanic acid or doxycycline had significantly increased body weight by the end of the study. The cats receiving doxycycline had significantly lower oculonasal discharge scores than the ones treated with amoxicillin-clavulanic acid or cefovecin. Those treated with amoxicillin-clavulanic acid or doxycycline had significantly lower sneezing scores than the cats receiving cefovecin. All of the Bordetella isolates in this study were resistant to cefovecin in vitro. Oral administration of amoxicillin-clavulanic acid or doxycycline appeared to be more effective than a single subcutaneous injection of cefovecin in treating shelter cats with signs of URTD. [VT]
See also: Tanaka A, Wagner DC, Kass PH and Hurley KF. Associations among weight loss, stress, and upper respiratory tract infection in shelter cats. J Am Vet Med Assoc. 2012; 240: 570-6.
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