India launches maiden Mars mission, placed into Earth orbit

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, Apr 24: The Central government said on Wednesday that the number of COVID-19 cases in the country is now doubling in every 10 days, adding that had the lockdown not been imposed on time, the number of cases would have sky-rocketed to over one lakh by now.

"Had we not taken the decision to impose nationwide lockdown, we would have had around one lakh COVID-19 cases by now. This is a reasonable estimate," said Niti Aayog member V.K. Paul.

Paul, who is also the Chairman of the government's Empowered Committee- 1, said the "cases are now doubling in every 10 days."

"As on March 21, our doubling time of cases was three days. Results started showing on March 23, due to travel restrictions imposed earlier. On April 6, further slowing of doubling rate became visible, thanks to the nationwide lockdown," he added.

He further added that the decision to impose the lockdown was timely and asserted that the curve has begun to flatten.

"Nationwide lockdown helped take us away from the exponential growth curve and thereby contain the growth of COVID-19 cases," he said.

Paul further added that surveillance has been a great strength in containing the spread of the virus.

"Besides containing the spread, augmenting testing and improving preparedness, the nation has brought about a massive behavioural change through a ‘Jan Andolan' (mass movement)," he said.

Meanwhile, the number of confirmed cases in the country has crossed the 23,000-mark, with 718 deaths. Globally, the number of cases has crossed 2.7 million while the death toll has mounted to 1.9 lakh.

New Delhi, Feb 12: The Centre on Wednesday said the NRC data in Assam is safe even though some technical issues were visible and that will be resolved soon.

The Union Home Ministry clarification came in view of reports that data of the final list of the National Register of Citizens has been made offline from its official website.

"The NRC data is safe. Some technical issues are in visibility on cloud. These are being resolved soon," a home ministry spokesperson said.

The data was not available for a couple of days and it created panic in the public, mostly among the people excluded from the list as the rejection certificates were yet to be issued.

NRC State Coordinator Hitesh Dev Sarma accepted that the data has been made offline, but refuted the allegation of any "malafide" intent in it.

The cloud service for the huge set of data was provided by IT firm Wipro and their contract was till October 19 last year. However, this was not renewed by the previous coordinator.

So, the data got offline from December 15 after it was suspended by Wipro, Sarma said.

He said the state coordination committee had decided to do necessary formalities in its meeting on January 30 and wrote to the Wipro during the first week of February.

"Once Wipro makes the data live, it will be available for public. We hope people will be able to access it in the next 2-3 days," Sarma said.

The complete detail of exclusion and inclusion of bonafide Indian citizens in the NRC was uploaded on its official website http://www.nrcassam.nic.in after the final list was published on August 31, 2019.

The final NRC was published by excluding 19,06,657 persons. A total of 3,11,21,004 names were included out of 3,30,27,661 applicants.

After the earlier NRC State Coordinator Prateek Hajela relinquished the charge on November 11 following his transfer to home state Madhya Pradesh on a direction from the Supreme Court, Sarma was appointed in his place on November 9.