Dengue surveillance evaluation in Rayong Hospital, Rayong Province, Thailand, 2015

Abstract

Background: Dengue disease is one of the most important infectious disease in tropical countries and implicate in public health problem in Thailand and Rayong province. Although we has policy, strategies and protocols for control of the disease, the high incidence of dengue has been reported every year. Because of high incidence of the disease in Rayong province, thus the surveillance system was evaluated to determine the qualitative and quantitative attributes of the Dengue surveillance system. The information may use of setting the efficient policy.
Methods: Cross-sectional study was conducted. Qualitative and quantitative attributes study was done by reviewing the medical records that were recruited in surveillance criteria. The inclusion period for evaluation during 1^st January – 31^st March 2015.
Results: Rayong had clear protocol for notification and reporting. The notification of dengue case must be done within 24 hours after diagnosis by clinician. The clinicians usually used the clinical presentations and basic laboratory to determine the suspected dengue disease. But there was few case who undergone Tourniquet’s test. The sensitivity of dengue case followed by the national surveillance definition of DF/DHF/DSS was high 91.17%, 85.71% and 100.00% respectively. But the predictive value positive of the diseases (DF/DHF/DSS) was very low as 22.79%, 26.47% and 19.11% respectively.
Conclusions: By overall, the dengue surveillance of Rayong Hospital was good in sensitivity. The system can be early detected and warning. But it should be strengthening of clinical information record to fulfil the criteria of dengue.