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High seroprevalence of Simkania negevensis in Jordan
Al-Younes, Hesham M.; Paldanius, Mika.
  • Al-Younes, Hesham M.; University of Jordan. Faculty of Science. Department of Biological Sciences. Amman. JO
  • Paldanius, Mika; University of Jordan. Faculty of Science. Department of Biological Sciences. Amman. JO
Braz. j. microbiol ; 45(4): 1433-1437, Oct.-Dec. 2014. tab
Artículo en Inglés | LILACS | ID: lil-741297
ABSTRACT
The bacterium Simkania negevensis is a germ associated with respiratory diseases. This study aims at estimating the prevalence of Simkania in the Jordanian population. Serum samples from 664 Jordanian males and females, aged 2 to 86 years were collected. IgG and IgM Simkania-specific antibodies were detected using an indirect immunofluorescence test. Seropositivity titers for IgG and IgM were defined as 18 and 110, respectively. The overall prevalence of IgG antibody in all examined Jordanian nationals was 58.4%. IgG seropositivity was low in children under the age of 10 years (34.2%), and increased rapidly with age and ranged between 49.4% and 72%. Simkania-specific IgM was detected in 24.8% of subjects. IgM prevalence in children under 10 years was lowest (10.5%) and increased in older ages and remained above 20%. Overall detection rates of both IgG and IgM were significantly higher in females than males (60.7% vs. 54.5% for IgG and 26.7% vs. 21.7% for IgM). These data indicate that Simkania infection is highly prevalent in Jordan. The high level of seropositivity is most likely maintained by re-infections or chronic infections. Our data may serve as a basis to elucidate the pathogenesis of Simkania in Jordan.
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Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Chlamydiales / Infecciones por Bacterias Gramnegativas / Anticuerpos Antibacterianos Tipo de estudio: Factores de riesgo Límite: Adolescente / Adulto / Anciano / Aged80 / Niño / Child, preschool / Femenino / Humanos / Masculino País/Región como asunto: Asia Idioma: Inglés Revista: Braz. j. microbiol Asunto de la revista: Microbiologia Año: 2014 Tipo del documento: Artículo País de afiliación: Jordania Institución/País de afiliación: University of Jordan/JO

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Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Chlamydiales / Infecciones por Bacterias Gramnegativas / Anticuerpos Antibacterianos Tipo de estudio: Factores de riesgo Límite: Adolescente / Adulto / Anciano / Aged80 / Niño / Child, preschool / Femenino / Humanos / Masculino País/Región como asunto: Asia Idioma: Inglés Revista: Braz. j. microbiol Asunto de la revista: Microbiologia Año: 2014 Tipo del documento: Artículo País de afiliación: Jordania Institución/País de afiliación: University of Jordan/JO