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New Delhi, Apr 15: As the world grapples with coronavirus, researchers have found the presence of a different kind of coronavirus -- bat coronavirus (BtCoV) --in two bat species from Kerala, Himachal Pradesh, Puducherry and Tamil Nadu, according to a study by the Indian Council of Medical Research (ICMR).

There is no evidence or research to claim that these bat coronaviruses can cause disease in humans, said Dr Pragya D Yadav, Scientist at the National Institute of Virology (NIV), Pune and also the first author of study.

The study has been published in the Indian Journal of Medical Research,

Twenty-five bats of Rousettus and Pteropus species from Kerala, Himachal Pradesh, Puducherry and Tamil Nadu were found positive for BtCoV in Kerala, Himachal Pradesh, Puducherry and Tamil Nadu.

"These bat coronaviruses have no relation with SARS-CoV2 responsible for the COVID-19 pandemic," Yadav said, adding that Pteropus bat species were earlier found positive for Nipah virus in 2018 and 2019 in Kerala.

"Bats are considered to be the natural reservoir for many viruses, of which some are potential human pathogens. In India, an association of Pteropus medius bats with the Nipah virus was reported in the past. It is suspected that the recently emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) also has its association with bats," the objective of the study titled 'Detection of coronaviruses in Pteropus and Rousettus species of bats from different states of India' stated.

"In the present scenario of changing demography and ecological manipulations, it is challenging to have checks on the encounters of bats with other animals and humans," the study stated, highlighting that the need for active and continuous surveillance remains crucial for outbreak alerts for bat-associated viral agents with epidemic potential, which would be helpful in timely interventions.

"Although CoVs in the subfamily coronavirinae do not usually produce clinical symptoms in their natural hosts (bats), accidental transmission of these viruses to humans and other animals may result in respiratory, enteric, hepatic or neurologic diseases of variable severity. It is still not understood as to why only certain CoVs can infect people," the study said.

The scientists stressed on the need of proactive surveillance of zoonotic infections in bats.

The detection and identification of such viruses from bats also recommends cross-sectional antibody surveys (human and domestic animals) in localities where the viruses have been detected.

Similarly, if the epidemiological situation demands, evidence-based surveillance should also be conducted, the study said while emphasing on the need of developing strong mechanisms for working jointly with various stakeholders such as wildlife, poultry, animal husbandry and human health departments.

"In conclusion, our study showed detection of bat CoVs in two species of Indian bats. Continuous active surveillance is required to identify the emerging novel viruses with epidemic potential," Dr Yadav said.

Elaborating on the study, Dr Yadav said throat and rectal swab samples of two bat species -- Rousettus and Pteropus -- from seven states were screened for the bat coronvirus during which the representative samples collected from Kerala, Himachal Pradesh, Puducherry and Tamil Nadu tested positive while those from Karnataka, Chandigarh, Punjab, Telengana, Gujarat and Odisha came out negative.

The reverse-transcription polymerase chain reaction (RT-PCR) tests and sequencing were used for the confirmation of the findings.

"This is an ongoing study to understand the prevalence of the Nipah virus in bats," she said.

New Delhi, July 20: India's retail trade has suffered a business loss of about Rs 15.5 lakh crore in past 100 days due to the COVID-19 lockdown, traders' body CAIT said on Sunday. 

In a statement, the Confederation of All India Traders (CAIT) said traders across the country are depressed because of minimal of the consumers, considerable absence of employees, facing financial crunch and yet have to meet several financial obligations.

"No support policy from the central or state governments is yet another crucial factor which is haunting the traders," CAIT claimed. 

CAIT Secretary General Praveen Khandelwal said the domestic trade is passing through its worst period in the current century which reflects that if immediate steps are not taken about 20 per cent of the shops in India will have to close down their shutters.

The traders’ body has also urged the government to award a substantial package to traders to ensure their survival. Their demands include: Relaxation in payment of taxes, extension in repayment of bank loans and EMIs without any further interest or penalty as well as measures that would provide money directly in the hands of the traders.

In April, the losses stood at about Rs. 5 lakh crore whereas in May it was estimated to be about Rs. 4.5 lakh crore, followed by Rs. 4 lakh crore in June. Losses stood at about 2.5 lakh crore in the first fortnight of July offering a grim snapshot of the effect of the pandemic on consumer spending. 

“Even as the lockdown was relaxed, store footfall was only 10 per cent. Most of these traders do not have deep pockets to sustain this severe economic catastrophe and on the other hand have several financial obligations to meet. At this crucial time, handholding of these traders is all the more much required,” Khandelwal said.