Dengue Fever Surveillance Evaluation, Udonthani Province, F.Y. 2018

Abstract

     Method: In the quantitative approach, the researcher sought the patients diagnosed with DHF and similar in order to include them in the study criteria, from the patients receiving medical services at 4 hospitals representing the general population. In the qualitative approach, the research interviewed involved persons.

     Results: The study revealed the following findings. Quantitative characteristics included 18.98% sensitivity,(95%CI, 14.98 - 23.74), 22.66 % positive prognosis (95%CI=17.63 - 28.21), and 100% data accuracy. The accuracy of data were related to address, gender, age (96.00, 58.20, and 33.76, respectively). The surveillance system reported the incidence cases on time within 1, 3, and 7 days ( 15.42 , 95.38, and 100 %, respectively) with the median of 2 days (min = 1 day; max =5 days). In relation to the qualitative characteristics, there were problems concerning follow ups and applicability of reports in relation to disease incidence reports and monitoring patients and disease. Only had the lab personnel not used the surveillance system with Report 506 or Ror Ngor 506 (in Thai) before (7.14%).

     Conclusion and comments: The Dengue fever surveillance system yielded the sensitivity of 18.98 %, which is in a low level. The positive prognosis of 22.66 % is in a low level. Nurses and health personnel screening the disease did not record all details from history taking so that the epidemiologists did not report the disease incidence, especially in 0-4 year pediatric patients, when the diagnosis is difficult. Except patients’ address, representativeness included gender, age group, and time of Dengue fever diagnosis.