KARACHI, Sept 4: Karachi Metropolitan Corporation teams sprayed the area around Empress Market, Electronic Market, Bohri Bazaar and Regal Chowk in Saddar with pesticides to prevent a dengue outbreak. The areas around offices of print and electronic media were also sprayed. KMC administrator Mohammad Hussain Syed while presiding over a meeting on Tuesday stressed that schools in all the five districts of the city should be sprayed with pesticides.