Dengue Hemorrhagic Fever (DHF) is
nowadays a worldwide concern. WHO estimates
[1] that 50 to 100 million cases of DF occur in
the world every year, and about two fifths of the
world’s population are now threatened by dengue.
Most of those patients are children who are under
15 years old. South East Asia and the Western
Pacific are most seriously affected by DHF. WHO
reported [2] that there were a total of 36,372
cases including 34 fatal cases in Thailand in
2006. Samut Sakhon is one of provinces of DHF
epidemic in Thailand. The monthly transition of
dengue cases in Samut Sakhon shows that there
was a peak of the number of dengue cases in Samut
Sakhon in 2006 on January and August. [3]
Furthermore, migrants in Samut Sakhon are
infected by DHF every year.