Assessing the impact of public health interventions on the transmission of pandemic H1N1 influenza a virus aboard a Peruvian navy ship.
Influenza Other Respir Viruses
; 8(3): 353-9, 2014 May.
Article
em En
| MEDLINE
| ID: mdl-24506160
ABSTRACT
BACKGROUND:
Limited data exist on transmission dynamics and effectiveness of control measures for influenza in confined settings.OBJECTIVES:
To investigate the transmission dynamics of a 2009 pandemic H1N1 influenza A outbreak aboard a Peruvian Navy ship and quantify the effectiveness of the implemented control measures.METHODS:
We used surveillance data and a simple stochastic epidemic model to characterize and evaluate the effectiveness of control interventions implemented during an outbreak of 2009 pandemic H1N1 influenza A aboard a Peruvian Navy ship.RESULTS:
The serological attack rate for the outbreak was 49·1%, with younger cadets and low-ranking officers at greater risk of infection than older, higher-ranking officers. Our transmission model yielded a good fit to the daily time series of new influenza cases by date of symptom onset. We estimated a reduction of 54·4% in the reproduction number during the period of intense control interventions.CONCLUSION:
Our results indicate that the patient isolation strategy and other control measures put in place during the outbreak reduced the infectiousness of isolated individuals by 86·7%. Our findings support that early implementation of control interventions can limit the spread of influenza epidemics in confined settings.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Influenza Humana
Tipo de estudo:
Prognostic_studies
Limite:
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Influenza Other Respir Viruses
Assunto da revista:
VIROLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Peru