Azaan from mosques causes noise pollution: Tripura governor

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, Feb 5: Delhi High Court on Wednesday stated that that death warrant of all convicts in the Nirbhaya gangrape and murder case should be executed together.

The Delhi prison rules do not state whether when the mercy petition of one convict is pending, the execution of the other convicts can take place and from the trial court to Supreme Court all convicts have been held by a common order and a common judgment, Justice Suresh Kumar Kait observed while passing the order.

High Court dismissed the Central government and Tihar Jail authorities plea challenging the Patiala House court's order, which stayed the execution of the four convicts in the case. It also observed that the convicts indulged in a heinous offence of a bone-chilling rape and murder of a girl and that criminal appeals by all convicts were dismissed by the courts.

Moreover, the court observed that the review petitions were filed after long wait and convicts are taking shelter of Article 21 which is available to them till their last breath.

A single-judge bench of Justice Suresh Kumar Kait had on Sunday kept the order reserved in the matter after special hearing of two days.

Earlier, Solicitor General Tushar Mehta, appearing on behalf of the Centre, alleged that the convicts were deliberately delaying the execution, adding that any delay in death sentence will have a dehumanising effect on the convicts.

A Delhi court last week stayed till further orders the execution of the four convicts -- Akshay Thakur, Mukesh Singh, Pawan Gupta, and Vinay Sharma -- which was earlier scheduled to take place on February 1.

The case pertains to the gang-rape and brutal murder of a 23-year-old paramedical student in a moving bus on the night of December 16, 2012, by six people, including a juvenile, in Delhi. The woman had died at a Singapore hospital a few days later.

One of the five adults accused, Ram Singh, had allegedly committed suicide in the Tihar Jail during the trial of the case.