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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.

Jehanabad, Jan 27: The police here carried out a raid at the ancestral house of anti-CAA activist Sharjeel Imam, who has been slapped with a sedition case in the national capital for alleged inflammatory speeches he gave at Shaheen Bagh and the Jamia Milia Islamia, a senior official said on Monday.

According to Superintendent of Police, Jehanabad, Manish Kumar, Imams house in Kako police station area was raided late on Sunday night following "help sought by central agencies" which are investigating the cases lodged against the JNU research scholar.

Imam was not found at his house but two of his relatives and their driver were detained for interrogation and let off thereafter, the SP said.

A graduate in computer science from IIT-Mumbai, Sharjeel Imam had shifted to Delhi for pursuing research at the Centre for Historical Studies, JNU.

He was slapped with a sedition case after his alleged speeches went viral on the social media wherein he was heard speaking about Assam's possible secession from the country in the wake of the Citienship (Amendment) Act (CAA).

Earlier, he had been booked on similar charges at a police station in Aligarh for a speech he delivered on the AMU campus.

Besides, a case under the stringent anti-terror law UAPA has been registered against him at Assam.

Imams late father Akbar Imam was a local JD(U) leader who had unsuccessfully contested an assembly election in his lifetime.

Reacting to the developments, his distraught mother Afshan Rahim told the media, "My son is innocent. He is a bright young man and not a thief or a pickpocket. I swear in the name of God that I do not know about his whereabouts. But I can guarantee that upon learning about the cases, he will appear before the investigating agencies and fully cooperate in the probe."

She said that it has been a long time since she met her son though she had a telephonic conversation with him a few weeks ago.

"He was obviously disturbed by the CAA and fears of the National Register of Citiznes (NRC) about being implemented across the country which, he said, would affect not just Muslims but all poor people," she said.

In fact, after 15 days of Shaheen Bagh protest, he had asked the agitators there to withdraw and watch the situation for a month, and then decide on the further course of action, she said. "But they refused to relent. He was calling for a 'chakkajam' (road blockade). He is just a kid and not capable of instigating people for secession," she added.

Prayagraj,  April 1: Seven Indonesian nationals, one person from Kolkata and one from Kerala who had attended the event at Delhi's Nizamuddin Markaz have been put under quarantine, informed SP (City) Prayagraj, Brijesh Kumar Srivastava on Wednesday.

"Seven Indonesian nationals, one person from Kolkata and one from Kerala, were found at Abdullah mosque here. During the investigation, it was found that they had attended the Markaz gathering in Delhi. These people, along with 28 people who came in contact with them, have been quarantined." he said.

"A case has also been registered against them for not informing the police on reaching here," he added.

Earlier, Delhi Health Minister Satyendar Jain had said that the officials are not certain of the accurate number of people who participated in the event but it is being estimated that 1,500-1,700 people had assembled at the Markaz building.

The religious gathering was held at the Markaz building in Nizamuddin between March 13 and March 15.

The total number of active cases rose to 1466 in the country, while 132 people have been cured and discharged after receiving treatment, as of 9 am.

The number of deaths due to the infection also rose to 38, while one person has migrated.