Arcobacter Isolation from Minced Beef Samples in Costa Rica
Fecha
2017
Tipo
artículo original
Autores
Córdoba Calderón, Oscar
Redondo Solano, Mauricio
Castro Arias, Eduardo
Arias Echandi, María Laura
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Resumen
The presence of Arcobacter spp. in minced meat (including beef) samples has been well documented in different countries,
with varying frequencies. Nevertheless, the only Latin American country reporting this bacterium in minced beef samples is
Mexico, with a 28.8% frequency in 2003. Previous studies in Costa Rica have demonstrated the presence of Arcobacter species in
samples taken from the poultry production chain, but still there are no studies performed in bovine meat. The aim of this study
was to determine the frequency of this bacterium in 120 samples of minced beef acquired from the Central Valley region of Costa
Rica and to describe the antibiotic sensitivity pattern of the isolates obtained. A total of 75 different Arcobacter strains were
isolated from minced beef samples, for a final frequency of 48.3%. After species PCR identification, the strains were classified as
A. butzleri (37.3%), A. cibarius (14.7%), A. thereius (12%), and Arcobacter spp. (36%). All samples were sensitive to gentamicin
but were resistant to ampicillin, levofloxacin, nalidixic acid, and ciprofloxacin. The results obtained in this study show that the
frequency of isolation of Arcobacter in minced beef samples is high and that there is a high resistance rate for antibiotics in
common use. This suggests that Arcobacter represents a health risk for Costa Rica and that control measures should be developed
to decrease its potential impact.
Descripción
Palabras clave
COSTA RICA, MEAT, BACTERIA, ANTIBIOTICS