Vector bane worse, stronger larvicide entry

Twenty-one new cases of chikungunya, three of dengue and three of dengue-chikungunya combined were detected at RIMS on Wednesday, the growing numbers of the vector-borne diseases in the capital prompting state entomologist (consulting) Sagya Singh to introduce a more lethal larvicide.

By RAJ KUMAR in Ranchi
  • Published 9.08.18
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NAUSEATING: Children cover their noses while crossing a drain in Hindpiri, Ranchi, on Wednesday. (Prashant Mitra)

Ranchi: Twenty-one new cases of chikungunya, three of dengue and three of dengue-chikungunya combined were detected at RIMS on Wednesday, the growing numbers of the vector-borne diseases in the capital prompting state entomologist (consulting) Sagya Singh to introduce a more lethal larvicide.

So far, 128 chikungunya, 22 dengue and nine dengue-chikungunya cases had been confirmed in areas in and around Hindpiri in Ranchi, Dr Neelam Chaudhary, assistant chief medical officer who sits in Ranchi Sadar Hospital, told this paper on Wednesday.

Actual numbers are likely to be more than these official figures as many patients have not been tested yet. Also, more positive cases will emerge in the days to come.

State entomologist (consulting) Singh said they had started using the stronger larvicide diflubenzuron in place of the milder temephos from Wednesday.

"Killing larvae of mosquitoes (Aedes aegypti) is the only effective solution now," she said. "Diflubenzuron (a solution of 1gm medicine for 1 litre water) is very effective for killing larvae," Singh said.

"We started spraying larvicides today (Wednesday) from 9am to 5pm with only a 30 minute recess. Mosquito repellent lotions were given to all 20 workers engaged in spraying," the entomologist said.

Head of RIMS microbiology department Dr Manoj Kumar also welcomed the latest larvae control exercise.

"Larvae control is the need of hour as today (Wednesday) out of 66 blood samples tested, 21 cases of chikungunya, three dengue and three dengue plus chikungunya were detected. To my knowledge, 239 new blood samples had reached RIMS for testing till I was here. The vector menace in Ranchi is serious," Dr Kumar said.

Three blood collection camps were also organised with help of voluntary organisation Lahu Bolega and Ranchi Sadar Hospital at Azad Basti, Millat Academy and Halalkhor Panchayat Hall.

As many as 215 persons came to the camps while blood samples of 60 were collected for testing.

However, convener of Lahu Bolega Nadeem Khan, one of those who prodded the district administration into action to tame the vector menace, expressed his dissatisfaction with the way the blood sample collection camps were being held.

He said the camps were being held for only two hours, which was too short a duration under the present circumstances.

However, Ranchi civil surgeon Dr Vijay Bihari Prasad said camps continued till people stay. "We have limited doctors and can continue our camp only till people stay, and collect blood samples according to need," he said.