Enterococcus infections in foals.

This research paper discusses the increasing prevalence of enterococcal infections in newborn foals, its common infection sites, resistance to antimicrobials, and associated survival outcomes. The study suggests that this bacterium is often found in the lower urogenital tract of foals and showcases high multidrug resistance, making infections from these bacteria less likely for foals to survive.

Objectives and Methodology

• The main purpose of this study was to analyze the origin, antimicrobial susceptibility, and survival outcome of foals with enterococcal infections in comparison to those infected with different bacteria. Previous studies hadn’t documented these aspects specific to enterococcal infections in newborn foals.
• The research involved two groups: 75 foals with cultures testing positive for Enterococcus and 170 control foals whose cultures tested positive for other bacteria. All these foals were aged between 0 to 30 days.

Findings

• Researchers found that Enterococcus was much more likely to be found in the lower urogenital tract of foals compared to other bacteria.
• Contrarily, Enterococcus was less likely to be detected in blood cultures in comparison to other bacteria.
• It was observed that 48% of Enterococcus isolates displayed a multiple antimicrobial resistance index of 30% or more. Similarly, 46% were found to have a multiple drug resistance index of 30% or more.

Outcomes

• The study revealed that survival to discharge rates was lower for foals infected with Enterococcus when compared to those infected with other bacteria.
• This suggested that foals with enterococcal infections were less likely to survive, potentially due to the common multidrug resistance among enterococcal isolates.

Recommendations

• Taking into account the high prevalence of multidrug resistance in Enterococcus, the study emphasizes the necessity of testing the antimicrobial susceptibility of cultured isolates for effective treatment planning.