Survey of bacterial microorganisms in the conjunctival sac of clinically normal dogs and dogs with ulcerative keratitis in Fortaleza, Ceará, Brazil

Abstract

The results of our study are directly applicable to initiate rational, preventive and therapeutic measures with greater accuracy in dogs with corneal ulcer.

Bacterial culture and antibiotic sensitivity from the ocular conjunctiva of horses

“…The grampositive bacteria displayed a predominance of 86.6% among the strains isolated, in accordance with findings for a series of domestic and wild animals (PRADO et al, 2005;SANTOS et al, 2009;SPINELLI et al, 2010;BONELLI et al, 2014;ORIÁ et al, 2014).…”

“…In the present study, Corynebacterium sp. was the fourth most common microorganism isolated, which has also been demonstrated in eyes of dogs (PRADO et al, 2005) and sheep (BONELLI et al, 2014) without eye problems, but at a lower prevalence as that observed in our animals.…”

“…Such discrepancy has been attributed to the ambient temperature and management to which the animal is subjected (PISANI et al, 1997;JOHNS et al, 2011); although, some authors have not identified any significant difference in the number or types of microorganisms isolated during different seasons of the year (ANDREW et al, 2003). Of the 200 samples collected in the present study, 131 (65.5%) showed bacterial growth (Table 1).…”

“…Some eye infections, however, can be caused by resident microorganisms, which become potentially pathogenic after their virulence is increased by external factors, such as trauma, stress, aging and reduction in commensal microbiota (COGEN et al 2008;WILLCOX, 2013). Horses are probably more susceptible to corneal lesions, compared to other species, since they have bulging eyes susceptible to trauma associated with their physical activity and the environment where they live (PISANI et al, 1997;WADA et al, 2010).…”

“…In different animal species, including horses (ANDREW et al, 2003;JOHNS et al, 2011), mules (TAMARZADEH & ARAGHI-SOOREH, 2014), donkeys (FOTI et al, 2013), sheep (BONELLI et al, 2014), dogs (PRADO et al, 2005) and rabbits (ORIÁ et al, 2014). Bacterial population often isolated from healthy eyes is composed of gram-positive bacteria, although strains of methicillin-resistant to Staphylococcus (MRS) and gran negative strains, have also been identified (SANTOS et al, 2009;JOHNS et al, 2011;WILLCOX, 2013;MOUNEY et al, 2013).…”