Dengue is caused by the Aedes mosquito infected with a dengue virus. It is basically a mosquito-borne disease. Every year many cities in India face this seasonal menace, especially post monsoon.According to a municipal report released on Monday, as many as 290 fresh cases of dengue were reported in the national capital in the week ending October 27, compared to 190 in the previous week. As per the latest report, 1,310 people have been diagnosed with the vector-borne disease in Delhi so far. However, the numbers are still less compared to last year's Dengue cases which were 3,272 for the same duration, according to the IANS report.