Massive Hike In Dengue Cases Might Be In Control After Winter Sets: Below 16°C and above 40°C, mosquitoes cannot breed. Based on this fact, Tilottama Calcutta and the whole state is looking at the wind to fight dengue.
The state has used almost all powers to control mosquitoes. Observers are being sent from district to district. 24 hours dengue test has been arranged in many hospitals. Drones are being flown for surveillance. Despite this, the fear of dengue is growing. Infections are increasing. Deaths also occur. Although the rate of infection, the positivity rate has come down compared to earlier, says Swasthyabhavan. But worry is decreasing! Aedes albopictus and Aedes aegypti are still the only carriers of dengue. If the life cycle of mosquitoes cannot be broken, it is difficult to reduce the spread of dengue. Therefore, the metropolis is now looking at the wind to control mosquitoes. According to entomologists, mosquitoes cannot breed below 16°C and above 40°C. Therefore, the possibility of dengue malaria is reduced in extreme heat or cold.
In this regard, it is to be noted that Accu Weather has predicted that the mercury will fall in the fifteenth house from the third week of November. But that mercury drop won’t last long. The second week of December will roll around to drop sharply below 15. Kalyani University researcher Arnab Chakraborty has been researching the life cycle of insects for a long time. He said that various environmental factors affect the breeding of insects. Like mosquito egg laying, competition with each other, and larval survival – all depend on temperature. Below sixteen, the life cycle of the mosquito begins to be punctuated. And when the temperature goes below 10 degrees, the life cycle of mosquitoes is disrupted. In fact, there are four stages in the mosquito life cycle from egg-laying to full-fledged mosquito.
Each case requires a different temperature. If you don’t get it, the mosquito cannot go to the next stage. But temperatures below 16 degrees are dangerous for any mosquito. But there are many other factors along with the temperature. such as the presence of larval predators. Larval food availability. However, it is difficult to control dengue mosquitoes, the chief entomologist of the Kolkata Municipality recently reminded us by taking the example of Singapore. Debashish Biswas. He said although it looks good, fogging is not very effective in killing mosquitoes.
According to him, bringing mosquito breeding sites is the best way to control mosquitoes. He reminded us that there are 11,813 wells, 12,751 open drains, 1923 ponds, 4528 buildable residential areas, and 5029 vacant plots in Kolkata city. These are all mosquito breeding grounds. 85 percent of wells, 88 percent of drains, and 77.5 percent of ponds are in South Kolkata. Due to the high number of dens, South Kolkata is prone to mosquitoes. 79-80 percent of dengue is in the south. Dengue prevalence is lowest in wards 15 and 16.