RESUMO
BACKGROUND: Brucellosis is a chronic bacterial disease caused by members of the genus Brucella. Among the classical species stands Brucella neotomae, until now, a pathogen limited to wood rats. However, we have identified two brucellosis human cases caused by B. neotomae, demonstrating that this species has zoonotic potential. CASES PRESENTATION: Within almost 4 years of each other, a 64-year-old Costa Rican white Hispanic man and a 51-year-old Costa Rican white Hispanic man required medical care at public hospitals of Costa Rica. Their hematological and biochemical parameters were within normal limits. No adenopathies or visceral abnormalities were found. Both patients showed intermittent fever, disorientation, and general malaise and a positive Rose Bengal test compatible with Brucella infection. Blood and cerebrospinal fluid cultures rendered Gram-negative coccobacilli identified by genomic analysis as B. neotomae. After antibiotic treatment, the patients recovered with normal mental activities. CONCLUSIONS: This is the first report describing in detail the clinical disease caused by B. neotomae in two unrelated patients. In spite of previous claims, this bacterium keeps zoonotic potential. Proposals to generate vaccines by using B. neotomae as an immunogen must be reexamined and countries housing the natural reservoir must consider the zoonotic risk.
Assuntos
Brucelose/diagnóstico , Infecções do Sistema Nervoso Central/diagnóstico , Brucella , Confusão/etiologia , Costa Rica , Febre/etiologia , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Several species of Brucella are known to be zoonotic, but B. neotomae infection has been thought to be limited to wood rats. In 2008 and 2011, however, B. neotomae was isolated from cerebrospinal fluid of 2 men with neurobrucellosis. The nonzoonotic status of B. neotomae should be reassessed.
Assuntos
Brucella/genética , Brucelose/epidemiologia , DNA Bacteriano/genética , Genoma Bacteriano , Zoonoses/epidemiologia , Animais , Arvicolinae/microbiologia , Brucella/classificação , Brucella/isolamento & purificação , Brucelose/diagnóstico , Brucelose/microbiologia , Costa Rica/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Filogenia , Zoonoses/microbiologiaRESUMO
Se presenta una revisión de los estudios bacteriológicos realizados en 47 pacientes con diagnóstico de fibrosis quística del páncreas. Entre 1994 y 1999 los hallazgos bacteriológicos de análisis hechos en diversas muestras del tracto respiratorio tanto de vías bajas como altas se analizan señalando a Pseudomonas aeroginosa y Staphylococus aureus como los de más frecuente aislamiento. Se presentan los porcentajes de otras bacterias con menores hallazgos y el comportamiento de P. aeroginosa a los antimicrobianos, haciendo una diferenciación entre cepas mucosas y no mucosas
Assuntos
Humanos , Masculino , Feminino , Pâncreas , Bacteriologia , Fibrose Cística , Costa RicaRESUMO
Se presenta el primer reporte de aislamiento de Leclercia adecarboxylata en Costa Rica. La bacteria se encontró en muestra tomada de uñas de un miembro del personal del Hospital Nacional de Niños, dentro de un estudio parte de una Campaña de Lavado de Manos. En la revisión bibliográfica se encuentran pocos reportes donde se mencionan diversos cuadros patológicos que se han considerado producidos por este microorganismo
