As of March 11, 13,200 Thais have fallen victims of dengue fever so far this year, with 16 fatalities, according to the Public Health Ministry.
Officials said that the number of cases and the number of fatalities are both 4 times higher than the same period last year.
The ministry's data shows that cases were reported in all provinces of Thailand.
A war room is now in place to monitor the situation and devise measures to contain the disease. The ministry fears the situation would worsen during the rainy season.
In its 2-mth lifecycle, a female yellow fever mosquito, which is the cause of dengue fever, can lay 500 eggs.