Isolamento e teste de susceptibilidade a antimicrobianos de bactérias em infecções uterinas de éguas

Abstract

Foram examinados 206 "swabs" cervicais e uterinos de éguas de várias raças, de diversas regiões do Estado de Minas Gerais, durante o período de 1986 a 1996. Cerca de 164 "swabs" foram positivos para a presença de microrganismos causadores de endometrites. Streptococcus equi subsp. zooepidemicus (25,7%) e Escherichia coli (15,1%) foram os principais agentes infecciosos isolados. Outros microrganismos presentes foram: Staphylococcus aureus (9,2%), Streptococcus alfa-hemolítico (9,2%), Pseudomonas aeruginosa (3,9%), Staphylococcus coagulase negativo (6,3%), Bacillus spp. (1,9%), Rhodococcus equi (3,4%) e Proteus mirabilis (1,5%). As provas de susceptibilidade aos antimicrobianos revelaram que amicacina e gentamicina (70,2%), ampicilina (59,5%) e cloranfenicol (59,5%) foram os antibióticos de maior ação in vitro contra os microrganismos isolados.

Molecular Typing and Anti‐microbial Susceptibility of Clinical Isolates of Streptococcus equi ssp. zooepidemicus from Equine Bacterial Endometritis

“…The results of the anti-microbial susceptibility of Sez are shown in Table 1. All the Sez isolates were susceptible to AMP and CEPHX, which is in agreement with the susceptibility pattern observed in other works (Ensink et al, 1993;Silva et al, 1999;Jacob et al, 2002;Las Heras et al, 2002;Keller and Hendrix, 2005). Trimethoprim-sulfamethoxazole and enrofloxacin were also efficacious in vitro.…”

“…In our study, the susceptibility of Sez to aminoglysosides was variable. A high percentage of the strains were resistant to AMIK (98.5%); however, the percentage of gentamicin-susceptible strains found in this study (98.5%) is higher than that previously reported (Ensink et al, 1993;Silva et al, 1999;Dowling et al, 2002;Keller and Hendrix, 2005). Neomycin was not interpreted because of absence of proposed breakpoints; nevertheless, this anti-microbial showed a unimodal population indicating a homogeneous response of Sez.…”

“…A relatively wide range of microorganisms are identified from endometrial swabs from mares with endometritis, being Streptococcus equi ssp. zooepidemicus (Sez), the pathogen most frequently isolated (Silva et al, 1999;Watson, 2000). The aim of this study was to determine the susceptibility of clinical isolates of (Sez) to several anti-microbial agents frequently used (Silva et al, 1999;Jacob et al, 2002) to control bacterial endometritis in mares, as well as their genetic diversity.…”

Endometrite bacteriana por Pseudomonas aeruginosa em égua doadora de embrião: relato de caso

“…Tal afirmativa, contudo, contradiz os achados desse relato, no qual ao exame ultrassonográfico não houve a presença de líquido no útero, mas a citologia foi positiva para contagem de neutrófilo. Silva et al (1999) relataram que Pseudomonas spp. foi isolada em éguas que foram tratadas várias vezes com antimicrobianos devido a problemas reprodutivos.…”