Four persons, including three minors, tested positive for dengue in Pollachi. They have been admitted to the Government Hospital.

The affected, all residents of surrounding areas of Subbegounden Pudur, were suffering from high fever for the last two days and on examination, they were found to be having dengue, sources said.

The admitted include a 30-year old youth, two boys aged even and nine and a 14-year-old girl. They are undergoing treatment in an isolated ward.