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1.
Southeast Asian J Trop Med Public Health ; 1993 Jun; 24(2): 347-53
Artículo en Inglés | IMSEAR | ID: sea-33994

RESUMEN

During a twelve-month period (1 July 91-30 June 92), feces from 912 persons from the Townsville region in the dry tropics of Queensland, Australia were evaluated by culture and 45 (4.9%) immunocompetent patients were found to be carrying Aeromonas in their stools. All patients were index cases and no secondary cases from household or close contact of index cases were identified. Eight patients (9.3%) were from Palm Island, an Aboriginal community, and 37 (4.5%) were from the essentially Caucasian population of Townsville. This is a significant difference in incidence of cases between the two population groups. Infection occurred mainly in two age groups: the under five-year-old (27 cases) and the over 25-year-old age group (17 cases). Except for one patient, all cases of Palm Island Aborigines were children less than five years of age, and 13 of these infants (48%) were less than 1 year old, but none were neonates. Of the 37 Townsville patients, 20 cases (54%) were in the under five-year-old group. Signs and symptoms of Aeromonas-associated diarrhea in patients where Aeromonas was the sole pathogen isolated were diarrhea sometimes with vomiting, absence of fever and of fecal leukocytes and blood in the stools. No cases of Aeromonas-associated diarrhea with dysentery were encountered. After rotavirus (12.3%), Aeromonas was the second most common enteric pathogen detected, but was only marginally more common than Giardia and Salmonella. Of the aeromonad isolations, 50% were Aeromonas hydrophila, 22% were A. sobria, and 28% were A. caviae.(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Adolescente , Adulto , Aeromonas/aislamiento & purificación , Portador Sano/microbiología , Niño , Preescolar , Diarrea/epidemiología , Heces/microbiología , Gastroenteritis/microbiología , Humanos , Lactante , Estudios Prospectivos , Queensland/epidemiología
2.
Southeast Asian J Trop Med Public Health ; 1992 Mar; 23(1): 142-6
Artículo en Inglés | IMSEAR | ID: sea-33351

RESUMEN

By using enzyme immunoassay and immunofluorescence antigen detection techniques on sputum specimens, four of 260 patients with pulmonary infection resident in tropical Queensland were found to be infected with Chlamydia. All four chlamydial infections were community-acquired and there was no history of close contact with birds by any of the four patients. One woman was deemed to be suffering with Chlamydia pneumonia, while the role of the organism in the pathogenesis of respiratory disease in the other three patients was indeterminate. At present, the incidence of pulmonary chlamydial infection in the population of tropical Queensland does not warrant routine testing, but investigations for these organisms should be undertaken in patients who present to their physicians with atypical pulmonary infection or whose clinical conditions are refractory to penicillin/ampicillin therapy.


Asunto(s)
Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Infecciones por Chlamydia/diagnóstico , Chlamydophila pneumoniae , Chlamydophila psittaci , Femenino , Técnica del Anticuerpo Fluorescente , Humanos , Técnicas para Inmunoenzimas , Incidencia , Masculino , Persona de Mediana Edad , Queensland/epidemiología , Infecciones del Sistema Respiratorio/diagnóstico , Factores de Riesgo , Esputo/microbiología
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