Materials and methods
This study was a part of a larger study known
as ‘‘The development of a school-based program
for dengue prevention and control: a study in
Kamphaeng Sao sub-district, Nakhon Si Thammarat
province, Thailand’’. The study was approved by
the International Review Board (IRB), the Ethical
Review Committee for Research Subjects, and
the Health Science Group at Walailak University,
Thailand. The researcher provided the objectives
of the study to the five primary schools and
obtained informed consent from each student’s parents
before collecting data at the school and in the
household survey