Kolkata: Dengue positivity drops to 6%, doctors hope for outbreak end | Kolkata News – Times of India

KOLKATA: The dengue positivity rate has stayed below 10% for the past week. With positivity at 6% in the past few days, health officials say the dengue outbreak may end in a couple of weeks. The dipping mercury has aided the dip in the number of cases. City hospitals are now witnessing a further fall in dengue bed occupancy.
Even till the start of September, the positivity rate had been around 5%, after which it started surging. On certain days, it reached as high as 18% – like in the beginning of October and November. But it started dropping below the 10% mark since November 16.
“With no rain in over a month, we have found a significant decline in larvae density during our vector-control exercise. Coupled with the temperature dip, we expect dengue cases to trickle down to only a few by November-end,” said a health official.
The state-run Infectious Diseases & Beliaghata General (ID&BG) Hospital, where dengue bed occupancy had surged to 50 during the peak had only 20 dengue patients on Wednesday.
“The admission flow for dengue patients has dropped significantly. Though we have some critical patients, their number has started going down,” said senior chest physician Kausik Chaudhuri of ID Hospital.
On an average, the three units of AMRI had 60-70 dengue patients even till the first week of November. The three hospitals combined currently have 36 patients.
“Dengue admission is on the decline. We currently have 20 dengue patients,” said Amit Ray, deputy medical director at Medica Superspecialty Hospital.
Dr BC Roy Post Graduate Institute of Paediatric Sciences, the designated dengue facility for children, had full occupancy at its dengue ward even a week ago. On Wednesday, the number of children admitted for dengue had receded to 20. “Along with the declining trend, we are seeing more awareness among patients who are coming in for early detection and treatment,” said paediatrics professor Dilip Pal, principal of the Phoolbagan hospital.
Experts said that once the mercury slips below 15°C, there is a massive decline in mosquito breeding. On Wednesday, the city’s minimum temperature was 16.9°C. “There is a significant slow-down in dengue cases, and there should be a further dip in numbers with winter setting in. But we still have few critical patients, including a pregnant woman,” said critical care specialist Anirban Chattopadhyay of CMRI.