An early report from newly established laboratory-based influenza surveillance in Lao PDR.
Influenza Other Respir Viruses
; 4(2): 47-52, 2010 Mar.
Article
en En
| MEDLINE
| ID: mdl-20167044
ABSTRACT
BACKGROUND:
Prior to 2007, little information was available about the burden of influenza in Laos. We report data from the first laboratory-based influenza surveillance system established in the Lao People's Democratic Republic.METHODS:
Three hospitals in the capital city of Vientiane began surveillance for influenza-like illness (ILI) in outpatients in 2007 and expanded to include hospitalized pneumonia patients in 2008. Nasal/throat swab specimens were collected and tested for influenza and other respiratory viruses by multiplex ID-Tag respiratory viral panel (RVP) assay on a Luminex 100x MAP IS instrument (Qiagen, Singapore).RESULTS:
During January 2007 to December 2008, 287 of 526 (54.6%) outpatients with ILI were positive for at least one respiratory virus. Influenza was most commonly identified, with 63 (12.0%) influenza A and 92 (17.5%) influenza B positive patients identified. In 2008, six of 79 (7.6%) hospitalized pneumonia patients were positive for influenza A and four (5.1%) were positive for influenza B. Children <5 years represented 19% of viral infections in outpatients and 38% of pneumonia inpatients.CONCLUSION:
Our results provide the first documentation of influenza burden among patients with febrile respiratory illness and pneumonia requiring hospitalization in Laos. Implementing laboratory-based influenza surveillance requires substantial investments in infrastructure and training. However, continuing outbreaks of avian influenza A/H5N1 in poultry and emergence of the 2009 influenza A(H1N1) pandemic strain further underscore the importance of establishing and maintaining influenza surveillance in developing countries.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Control de Enfermedades Transmisibles
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Brotes de Enfermedades
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Vigilancia de Guardia
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Técnicas de Laboratorio Clínico
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Gripe Humana
Tipo de estudio:
Diagnostic_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
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Screening_studies
Aspecto:
Determinantes_sociais_saude
Límite:
Adolescent
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Adult
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Aged
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Aged80
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
Influenza Other Respir Viruses
Asunto de la revista:
VIROLOGIA
Año:
2010
Tipo del documento:
Article
País de afiliación:
Tailandia