Estimating the effectiveness of early control measures through school absenteeism surveillance in observed outbreaks at rural schools in Hubei, China.
PLoS One
; 9(9): e106856, 2014.
Article
en En
| MEDLINE
| ID: mdl-25250786
ABSTRACT
BACKGROUND:
School absenteeism is a common data source in syndromic surveillance, which allows for the detection of outbreaks at an early stage. Previous studies focused on its correlation with other data sources. In this study, we evaluated the effectiveness of control measures based on early warning signals from school absenteeism surveillance in rural Chinese schools.METHODS:
A school absenteeism surveillance system was established in all 17 primary schools in 3 adjacent towns in the Chinese region of Hubei. Three outbreaks (varicella, mumps, and influenza-like illness) were detected and controlled successfully from April 1, 2012, to January 15, 2014. An impulse susceptible-exposed-infectious-recovered model was used to fit the epidemics of these three outbreaks. Moreover, it simulated the potential epidemics under interventions resulting from traditional surveillance signals. The effectiveness of the absenteeism-based control measures was evaluated by comparing the simulated datasets.RESULTS:
The school absenteeism system generated 52 signals. Three outbreaks were verified through epidemiological investigation. Compared to traditional surveillance, the school absenteeism system generated simultaneous signals for the varicella outbreak, but 3 days in advance for the mumps outbreak and 2-4 days in advance for the influenza-like illness outbreak. The estimated excess protection rates of control measures based on early signals were 0.0%, 19.0-44.1%, and 29.0-37.0% for the three outbreaks, respectively.CONCLUSIONS:
Although not all outbreak control measures can benefit from early signals through school absenteeism surveillance, the effectiveness of early signal-based interventions is obvious. School absenteeism surveillance plays an important role in reducing outbreak spread.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
1_ASSA2030
/
2_ODS3
Problema de salud:
1_doencas_nao_transmissiveis
/
1_doencas_transmissiveis
/
1_surtos_doencas_emergencias
/
2_enfermedades_transmissibles
/
2_muertes_prematuras_enfermedades_notrasmisibles
Asunto principal:
Varicela
/
Salud Rural
/
Absentismo
/
Gripe Humana
/
Paperas
Tipo de estudio:
Clinical_trials
/
Prognostic_studies
/
Screening_studies
Aspecto:
Determinantes_sociais_saude
Límite:
Adolescent
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Child
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Child, preschool
/
Female
/
Humans
/
Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
PLoS One
Asunto de la revista:
CIENCIA
/
MEDICINA
Año:
2014
Tipo del documento:
Article
País de afiliación:
China