State Minister of Education Services Ranjith Siyambalapitiya says that a series of dengue eradication programs should be conducted before all schools in the country restart after the holidays.Speaking to the media after attending a function held at Kumburugama in the Deraniyagala electorate in Kegalle district the Minister said due to the lack of rain these days, an increase in the spread of dengue has been observed across the island.