Since September, Delhi has seen a tremendous increase in dengue infections, with nine deaths and over 2,700 cases. Dengue incidence in the national capital, according to DR Suresh Kumar, MD, LNJP hospital, have stabilised and will decline in 2-3 days. The decrease in dengue illnesses, he believes, is due to the change in season. During the winter, he claims, mosquito breeding decreases.
“Dengue cases in Delhi have stabilised and will decrease in 2-3 days as the temperature is dipping & mosquito breeding reduces in this season,” Dr Kumar told ANI news agency.
Various other health experts have also opined that the cases may come down by mid-November. Experts further stated that the cyclic pattern of dengue is such that it shows a rise in the number of cases every three to four years.
Recently, a survey was conducted by LocalCircles in which 43% of the Delhi-NCR residents said that someone in their family or close network was impacted by dengue this year.
Dengue mosquito larvae breed in clear, standing water, while those of malaria thrive even in dirty water. Cases of vector-borne diseases are usually reported between July and November, but the period may stretch till mid-December.
The number of dengue cases reported for the January 1 to November 6 period in the previous four years was — 722 in 2020; 1,301 cases in 2019; 1,875 cases in 2018 and 4,188 cases in 2019. A total of 1,072 cases and one death, were logged in 2020. The number of deaths due to dengue in years preceding 2020 were — two in 2019; four in 2018; and 10 in both 2017 and 2016.