Manila, Feb. 28 -- The Provincial Health Office (PHO) in Negros Oriental is urging local government units (LGUs), schools and other institutions to strengthen measures against dengue, particularly the 4 o'clock habit.

"I hope that all LGUs will do it daily and especially the schools. The 4 o'clock habit is to search and destroy breeding places of mosquitos that carry and transmit the dengue virus to humans," PHO chief Dr. Liland Estacion said in an interview on Friday.

The measure refers to the Department of Health's (DOH) campaign encouraging communities to eliminate mosquito breeding sites at 4 p.m. every day.

Estacion said this approach is complementary to other measures undertaken by the PHO, such as misting operations and the prov...