The purpose of this study was to characterize strains of Pasteurella multocida isolated from lungs of 1-2 months old alpacas with signs of pneumonia, collected in 2014. The BOX-PCR technique was used to demonstrate genetic diversity among strains. Twenty-four strains of P. multocida were isolated from 46 animals through biochemical identification tests. The BOX-PCR analysis showed two amplified band patterns, where 22 strains were grouped in one cluster and two strains in another cluster. The present study showed genetic homogeneity in most of the strains, evidencing a common source of infection that affected the animals.

The purpose of this study was to characterize strains of Pasteurella multocida isolated from lungs of 1-2 months old alpacas with signs of pneumonia, collected in 2014. The BOX-PCR technique was used to demonstrate genetic diversity among strains. Twenty-four strains of P. multocida were isolated from 46 animals through biochemical identification tests. The BOX-PCR analysis showed two amplified band patterns, where 22 strains were grouped in one cluster and two strains in another cluster. The present study showed genetic homogeneity in most of the strains, evidencing a common source of infection that affected the animals.

The objective of the study was the detection of canine parvovirus type 2 (CPV-2) in young dogs of Lima city with and without clinical symptoms compatible with parvovirus by the PCR technique using primers that can allow the amplification of a fragment of the gene coding for the protein VP2. Rectal swabs were collected from 78 dogs younger than one year old and without a history of previous vaccinations, of which 39 individuals had a clinical diagnosis of canine parvovirus and the other 39 were clinically healthy animals. For the extraction of viral DNA, the fast boiling method was used. Samples were boiled at 100 °C for 10 minutes and then centrifuged to extract the supernatant, which was used as a template for the PCR reaction. Specific primers that amplify a 1316 base pair fragment of the VP2 gene of the CPV-2 virus were used, using a commercial vaccine as a positive control. The viru...

El objetivo del estudio fue la detección de parvovirus canino tipo 2 (CPV-2) en perros jóvenes con/sin sintomatología clínica compatible con parvovirosis mediante la técnica de PCR, usando cebadores que pueden permitir la amplificación de un fragmento del gen codificante de la proteína VP2. Se colectaron hisopados rectales de 78 perros menores a un año y sin historia de vacunaciones previas, de los cuales 39 individuos tuvieron un diagnóstico clínico de parvovirosis canina y los otros 39 fueron animales clínicamente sanos. Para la extracción de ADN viral se usó el método fast boiling, donde las muestras fueron sometidas a un hervido a 100 °C por 10 minutos con posterior centrifugación para extraer el sobrenadante, el cual fue usado como molde para la reacción de PCR. Se usaron cebadores específicos que amplifican un fragmento de 1316 pares de bases del gen VP2 del virus...

The aim of this study was to characterize 20 strains of Salmonella enterica at molecular level and antimicrobial resistance. Of these, 15 strains were obtained from infected guinea pigs and five from clinically healthy guinea pigs from two intensive production centers located in Lima, Peru. The invA, prot6E and fliC genes corresponding to the genus Salmonella and serovars Enteritidis and Typhimurium, respectively, were detected by a multiple PCR technique. Genetic variability was detected using the BOX-PCR technique using the first BOXA1R. Resistance was evaluated using the Kirby Bauer technique based on erythromycin, nitrofurantoin, streptomycin, penicillin, enrofloxacin, fosfomycin, amoxicillin with clavulanic acid, sulfatrimetoprim and ciprofloxacin. Serotype Typhimurium was determined in 100% of the isolates. The evaluation of the electrophoretic profiles obtained by the BOX-PCR tech...

El objetivo del estudio fue caracterizar 20 cepas de Salmonella enterica a nivel molecular y de resistencia antimicrobiana. De estas, 15 fueron obtenidas de cuyes infectados y cinco de cuyes clínicamente sanos, procedentes de dos centros de producción intensiva ubicados en Lima, Perú. Mediante una técnica de PCR múltiple se detectaron los genes invA, prot6E y fliC, correspondientes al género Salmonella y serovares Enteritidis y Typhimurium, respectivamente. Se detectó la variabilidad genética mediante la técnica BOX-PCR utilizando el primer BOXA1R. La resistencia fue evaluada utilizando la técnica de Kirby Bauer en base a eritromicina, nitrofurantoína, estreptomicina, penicilina, enrofloxacina, fosfomicina, amoxicilina con ácido clavulánico, sulfatrimetoprim y ciprofloxacina. Se determinó la serovariedad Typhimurium en el 100% de los aislados. La evaluación de los perfiles...