KARACHI: Two more dengue patients died of mosquito-borne dengue fever in Karachi, taking the death toll to 29 in the metropolis. A 55-year-old woman, identified as Zahida Kausar was resident of the Federal B. Area and was under treatment at a private hospital of Karachi. She died to the dengue virus during treatment. A seventh-month-old child, resident of Al-Noor society, also lost the battle against dengue fever.