Latest news with #Merbecoviruses
Time of India
4 days ago
- Health
- Time of India
Scientists identify a group of viruses just one mutation away from causing the next pandemic
A recent study published in Nature Communications by researchers from Washington State University (WSU), the California Institute of Technology and the University of North Carolina, has raised concerns about a group of bat viruses closely related to the deadly Middle East Respiratory Syndrome Coronavirus (MERS-CoV). Scientists warn that a specific subgroup of these viruses, known as HKU5, is showing signs of being just one small mutation away from being able to infect humans. This raises serious concerns about the potential for these viruses to spill over from animals to people, potentially triggering the next global pandemic. What are Merbecoviruses? Merbecoviruses are a subgenus of coronaviruses that includes MERS-CoV, which was first identified in 2012 and has a mortality rate of approximately 34%. These viruses primarily infect bats but have the potential to jump to humans, as evidenced by MERS-CoV. While most merbecoviruses have been studied to some extent, the HKU5 subgroup has received limited attention until now. The discovery of HKU5's potential to infect humans The recent study focused on understanding how HKU5 viruses infect host cells. The researchers found that while most merbecoviruses appear unlikely to pose a direct threat to humans, HKU5 viruses possess concerning traits. Specifically, HKU5 viruses were shown to use a host receptor known as ACE2, the same receptor used by the more well-known SARS-CoV-2 virus that causes COVID-19. However, HKU5 viruses, for now, can only use the ACE2 gene in bats and do not use the human version nearly as well. Sponsored Links Sponsored Links Promoted Links Promoted Links You May Like Perdagangkan CFD Emas dengan Broker Tepercaya IC Markets Mendaftar Undo This discovery is significant because it suggests that with just a small mutation, HKU5 viruses could potentially infect humans. The researchers used artificial intelligence to model how the HKU5 spike protein binds to ACE2 at the molecular level, which could help provide a better understanding of how antibodies might block the infection or how the virus could mutate. The risk of zoonotic spillover Zoonotic spillover refers to the process by which a virus jumps from animals to humans. This has been the source of several past pandemics, including SARS, MERS, and COVID-19. The ability of HKU5 viruses to bind to the ACE2 receptor in bats and potentially in humans raises the possibility of zoonotic spillover. The study also highlighted that one HKU5 virus in China has already been documented to have jumped into minks, showing there is potential for these viruses to cross species barriers. While there is no evidence that HKU5 viruses have infected humans yet, the potential is there, and that makes them worth monitoring. The role of AI in virus research The researchers used a program called AlphaFold 3 to model how the HKU5 spike protein binds to ACE2 at the molecular level. This approach allowed them to generate accurate predictions in minutes, a process that traditionally required months of lab work and specialized equipment. The results matched those recently documented by a research team that used traditional approaches. This use of artificial intelligence in virus research is a significant advancement, as it allows scientists to quickly assess the potential risks of various viruses and develop strategies to counteract them. While there is no immediate cause for alarm, the discovery that HKU5 viruses can bind to the human ACE2 receptor is a concerning development. The potential for these viruses to mutate and infect humans underscores the need for continued surveillance and research into bat coronaviruses. By understanding how these viruses function and how they might evolve, scientists can better prepare for potential future pandemics. As we have seen with past pandemics, the jump of a virus from animals to humans can have devastating consequences. Therefore, it is crucial to monitor these viruses closely and take proactive measures to prevent potential outbreaks. The recent study serves as a reminder of the ever-present threat of zoonotic diseases and the importance of vigilance in the face of emerging infectious diseases. One step to a healthier you—join Times Health+ Yoga and feel the change
Gulf Insider
22-02-2025
- Health
- Gulf Insider
China Reports New Coronavirus ‘With Pandemic Potential' Discovered
Another coronavirus feared to be powerful enough to spread through humans has been discovered in China. In scenes eerily reminiscent of the beginnings of Covid, researchers at the infamous Wuhan Institute of Virology detected the new strain living within bats. HKU5-CoV-2 is strikingly similar to the pandemic virus, sparking fears that history could repeat itself just two years after the worst was declared over. The new virus is even closer related to MERS, a deadlier type of coronavirus that kills up to a third of people it infects. Virologist Shi Zhengli, known as 'Batwoman' for her work on coronaviruses, led the discovery, published in a top scientific journal. The new HKU5-CoV-2 is a coronavirus belonging to the merbecovirus family of pathogens. Merbecoviruses have been detected in minks and pangolins – the animal believed to be the intermediary for Covid between bats and humans. This, the scientists wrote, 'suggests frequent cross-species transmission of these viruses between bats and other animal species.' They added: 'This study reveals a distinct lineage of HKU5-CoVs in bats that efficiently use human [cells] and underscores their potential zoonotic risk.' HKU5-CoV viruses were first detected in bats in 2006, but the new data suggests HKU5-CoV-2 has a 'higher potential for interspecies infection' than others. However, the potential for HKU5-CoV-2 to spill over to humans 'remains to be investigated.' The research was conducted by the Wuhan Institute of Virology, which is at the center of the lab-leak theory, which claims Covid-19 was manufactured in a Chinese lab and accidentally leaked to the public. While stocks overall were dumped on the report. Drugmakers, like MRNA and PFE surged. Bonds are bid as safe-haven flows hit… The market is extremely anxious here but for now, this seems like the catalyst for this leg down – however farcical that may seem.
