ISLAMABAD: The federal capital has recorded 45 more dengue fever cases during the past 24 hours, according to the district health officer (DHO). In the last 24 hours 45 patients with dengue fever reported in rural and urban areas of Islamabad, the district health officer (DHO) said. The death toll from dengue fever climbed to 17 after two more people died from the viral disease. A total of 4,167 mosquito-borne viral disease cases have been reported in the federal capital in the current season. Dengue fever cases are surging in Punjab, Khyber Pakhtunkhwa, Sindh and Islamabad at an alarming rate. Dengue is a mosquito-borne viral infection that is common in warm, tropical climates. It often peaks during rainy seasons, states the World Health Organisation (WHO). Once bitten by a dengue-infected mosquito, the virus takes four-10 days to affect the body. The viral disease symptoms can be mild, similar to the common flu. They can also become severe such as fever, headaches, pain behind the eyes and nausea.