Influenza surveillance and incidence in a rural area in China during the 2009/2010 influenza pandemic.
PLoS One
; 9(12): e115347, 2014.
Article
em En
| MEDLINE
| ID: mdl-25542003
ABSTRACT
BACKGROUND:
Most influenza surveillance is based on data from urban sentinel hospitals; little is known about influenza activity in rural communities. We conducted influenza surveillance in a rural region of China with the aim of detecting influenza activity in the 2009/2010 influenza season.METHODS:
The study was conducted from October 2009 to March 2010. Real-time polymerase chain reaction was used to confirm influenza cases. Over-the-counter (OTC) drug sales were daily collected in drugstores and hospitals/clinics. Space-time scan statistics were used to identify clusters of ILI in community. The incidence rate of ILI/influenza was estimated on the basis of the number of ILI/influenza cases detected by the hospitals/clinics.RESULTS:
A total of 434 ILI cases (3.88% of all consultations) were reported; 64.71% of these cases were influenza A (H1N1) pdm09. The estimated incidence rate of ILI and influenza were 5.19/100 and 0.40/100, respectively. The numbers of ILI cases and OTC drug purchases in the previous 7 days were strongly correlated (Spearman rank correlation coefficient [r]â= 0.620, P = 0.001). Four ILI outbreaks were detected by space-time permutation analysis.CONCLUSIONS:
This rural community surveillance detected influenza A (H1N1) pdm09 activity and outbreaks in the 2009/2010 influenza season and enabled estimation of the incidence rate of influenza. It also provides a scientific data for public health measures.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Vigilância de Evento Sentinela
/
Influenza Humana
/
Vírus da Influenza A Subtipo H1N1
/
Pandemias
Tipo de estudo:
Incidence_studies
/
Prognostic_studies
/
Risk_factors_studies
/
Screening_studies
Limite:
Humans
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article