What we know about “Langya”, this new virus discovered in China


KATERYNA KON/SCIENCE PHOTO LIBRARY via Getty Images Image showing the structure or composition of an influenza virus. It includes in particular surface glycoproteins: hemagglutinin (in red) and neuraminidase (in purple) KATERYNA KON/SCIENCE PHOTO LIBRARY via Getty Images “Langya” is a new virus identified in China by Taiwanese researchers. HEALTH – After the coronavirus, it is now the Langya virus that worries the Chinese authorities, the Taipei Times newspaper reported on Tuesday, August 9. This new pathogen has just been discovered in China by Taiwanese scientists, while the two countries are in serious diplomatic tensions. The new Langya henipavirus (LayV) was first detected in the northeastern provinces of Shandong and Henan in late 2018, but was only formally identified by scientists last week, British newspaper The Guardian reports. Only 35 cases have been identified since 2018 and all have been detected in China. The shrew would be the reservoir of the virus The first information about the virus was published in the New England Journal of Medicine (NEJM) a few days ago. What we know at the moment is that the virus would probably be a zoonosis, meaning a virus transmitted from animals to humans. Early evidence in wild animals indicates that the shrew could be the host animal. But the virus has also been detected in goats (2%) and dogs (5%). Infectiologists have long warned that human pressure on natural environments, such as deforestation or agricultural intensification, increases the risk of virus transmission from animals to humans. Currently, 75% of emerging infectious diseases in humans are zoonoses, according to the World Health Organization (WHO). In addition, although the origin of Covid-19 has not been established with certainty, the track of zoonosis is favored because SARS-CoV-2 is very close to a virus detected in bats. Not comparable with the coronavirus A disease transmitted by an animal and discovered in China, the comparison with the coronavirus is quickly established but these two viruses are not comparable. Unlike Covid, langya “does not spread quickly in humans”, Professor François Balloux of the UCL Institute of Genetics explains on Twitter. “If there’s no person-to-person transmission, it’s hard to imagine a real epidemic because not everyone is exposed to shrews,” he continues. A new zoonotic virus called Langya henipavirus (LayV) has been characterized. 35 cases have been found in humans, so… https://t.co/n1CMxKR728 — Prof Francois Balloux (@BallouxFrancois) View Tweet Virologist Yannick Simonin reminds Le Parisien that viruses emerge every year without necessarily causing pandemics: “This has been circulating quietly for several years and we are not in an emergency situation as was the case with SARS-CoV-2. There are no special concerns at this stage, but the need to ‘additional studies’. There is no pandemic on the horizon, but the authors of the New England Journal of Medicine (NEJM) report consider it important to conduct new studies to “better understand human disease” at the origin of the dozens of cases identified A deadly virus that spreads little among humans In humans, Langya causes symptoms such as fever, fatigue, cough, loss of appetite, and muscle pain Belongs to the henipavirus family, which includes Nipah and Hendra viruses , which are very lethal Nipah, which caused epidemics in the Southeast t Asian in the early 2000s, has an estimated mortality rate of 40 to 75 percent, according to the WHO. Which is much higher than that of Covid-19. For example, in France, the Covid mortality rate was 0.5% on April 26, 2022 according to the Statista agency. There is currently no vaccine to counteract the effects of Langya. Although with such a high death rate the virus may be worrying (no deaths due to Langya have been made public), the situation is not yet alarming. Again, the disease progresses slowly, with only 35 cases reported between April 2018 and August 2021. Taiwan’s Center for Disease Control (CDC) announced on Sunday that surveillance measures for the virus will be put in place underway in the coming months. . See at The HuffPost: Monkey pox: Why the gay community is worried You cannot view this content because you have declined cookies associated with third-party content. If you want to see this content, you can change your preferences. Read also:
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