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Original Article

Association of abo blood group and outcome of coccidioidal infection

, &
Pages 261-264 | Published online: 09 Jul 2009
 

Abstract

Dissemination of fungal infection due to Coccidioides immitis has been previously shown to be related to hereditary factors. Two associations reported to date are race (e.g., Filipino and black ancestry) and HLA histocompatibility type (HLA-A9). In the present study of 105 patients a significant association of blood group B and dissemination is demonstrated. C. immitis is known to possess antigens with blood group A activity. Previous epidemiologic studies have also shown HLA-A9 and blood group B are both more common in persons of black and Filipino ancestry. Further studies are needed to define whether these are independent variables, and may define subgroups at particularly high risk following coccidioidal infection.

Abstracto

Se ha demostrado que la diseminacion de la infeccion de hongos que son el resultado de Coccidioides immitis se relaciona a factores hereditarios. Dos associaciones que se han reportado son raza (por ejemplo: desendencia Filipina y Negra) e histocompatibilidad tipo HLA (HLA-A9). En este estudio de 105 pacientes una associacion de tipo sanguieno tipo B (p<0·001) y diseminacion se demostraron. De nota, C. immitis posee antigenos con actividad de grupo sanguineo A. Estudios epidemiologicos asi mismo han demostrado HLA-A9 y grupos sanguineo B son mas comunes en personas de desendencia Filipina y Negra. Se necesitan mas estudios a fin de definir los variables independientes que puedan definir subgrupos a riesgo alto despues de infeccion que son el resultado de C. immitis.

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