NeoCov coronavirus found in bats may pose threat to humans in future, Chinese scientists caution
Beijing, Jan 28: A type of coronavirus, NeoCov, that spreads among bats in South Africa may pose a threat to humans in future if it mutates further, according to a study by Chinese researchers.
The yet-to-be peer-reviewed study recently posted on the preprint repository BioRxiv, shows that NeoCov is closely related to the Middle East respiratory syndrome (MERS), a viral disease first identified in Saudi Arabia in 2012.
Coronaviruses are a large family of viruses that can cause diseases ranging from the common cold to Severe Acute Respiratory Syndrome (SARS).
Researchers from Chinese Academy of Sciences and Wuhan University noted that NeoCov is found in a population of bats in South Africa and to date spreads exclusively among these animals.
In its current form, NeoCov does not infect humans but further mutations may make it potentially harmful, the researchers noted.
"In this study, we unexpectedly found that NeoCoV and its close relative, PDF-2180-CoV, can efficiently use some types of bat Angiotensin-converting enzyme 2 (ACE2) and, less favourably, human ACE2 for entry," the authors of the study noted.
ACE2 is a receptor protein on cells that provides the entry point for the coronavirus to hook into and infect a wide range of cells.
"Our study demonstrates the first case of ACE2 usage in MERS-related viruses, shedding light on a potential bio-safety threat of the human emergence of an ACE2 using "MERS-CoV-2" with both high fatality and transmission rate," they said.
The researchers further noted that infection with NeoCov could not be cross-neutralised by antibodies targeting SARS-CoV-2 or MERS-CoV.
"Considering the extensive mutations in the RBD regions of the SARS-CoV-2 variants, especially the heavily mutated Omicron variant, these viruses may hold a latent potential to infect humans through further adaptation," the authors of the study added.
A receptor-binding domain (RBD) is a key part of a virus that allows it to dock to body receptors to gain entry into cells and lead to infection.
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Bantwal: Ex-soldier dies after casting vote at home
Bantwal, Apr 24: Madhava Prabhu, an 85-year-old resident of Wagga in Bantwal, exemplified unwavering commitment to his civic duty even in the face of illness.
Admitted to a private hospital here owing to his ailment, Prabhu, a former army officer and inspector of Malaria Eradication department, died without responding to treatment on Wednesday.
Amidst his illness, Prabhu was determined to exercise his right to vote, especially with the provision for home voting for those aged 85 and above.
With the doctor's permission, he left the hospital briefly to fulfil his sacred duty on Tuesday. However, fate had a cruel twist in store as Prabhu's condition worsened upon his return to the hospital.
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Tragically, he passed away today, leaving behind his wife, two daughters, and sons.
Prabhu's life epitomizes dedication and service, from his tenure in the army to his role in the Malaria Eradication Department and his involvement in community affairs as vice president of the Multi-Purpose Co-operative Society.
His commitment to duty and his final act of voting serve as a poignant reminder of the importance of civic engagement, even in the most challenging circumstances.
