Outbreak investigation of dengue fever in Bansunpalan, Takok sub district, Bantak district, Tak, Thailand, May – June 2015

Abstract

Background: On 12nd May 2015, the SRRT in Bantak Hospital was notified of Dengue Fever case at Emergency Department of Bantak Hospital in Tak Province. An investigation was conducted during 13th May 2015 – 16th June 2015 with the objectives to confirm a diagnosis and outbreak, to conduct active cases finding, prevent and control further spread of the disease.
Methods: Descriptive study was performed by reviewing medical record of cases, data from interviews were recorded in the investigation forms, conducting active cases finding in community according in case definition and collecting specimens from suspected cases, environment surveys at patients’ house, community and school.
Results: The 3 cases (2 Myanmar, 1 Thai nationality), all confirmed cases. First case and Index case were Myanmar, They are employee and they live in the same house. The first case was 18 years old male. His onset was on 5 May 2014 (from active cases finding). The index case was 23 years old male adolescent, his onset was 10 May 2015. The third case was 13 years old adolescent and study secondary school in Bantak district. His was onset 20 May 2015. He lived near the first case’s habitat. All cases were fever, headache, and myalgia. They were confirmed for Dengue Fever.
Conclusions: The key success control measures were the network cooperation of subdistrict Municipality, School, Public Health Department, Village Health Volunteer and people in the community. The outbreak was curtained and no second generation was observed in the outbreak area.