9/11/2023 0 Comments India covid mutation![]() “Best-case scenario is you find the person, they have long Covid but had no idea they had this infection, and you get them with a doctor who can get them on medicines that will actually give their immune system a bit of an upper hand, and they get better,” Johnson said. The only way to know for sure is to directly link the genetic sequence from a clinical test to the wastewater sample. These unique instances could be from people with long Covid, or they could be from an infected animal whose waste made it into the system. Wastewater surveillance is inherently messy, and lots of factors can interfere with interpretation of the data, she said. Wastewater surveillance becomes more targeted in search for poliovirus, monkeypox and coronavirusįor Kirby, some questions remain. Johnson’s research has led him to the conclusion that humans are the primary explanation for the cryptic lineages. “And it’s not what we’re seeing with these cryptic lineages.” “The signal we really look for is specific variants increasing in frequency in a community, because that’s what happens at the beginning of a variant surge,” Kirby said. Right now, the cryptic lineages do not pose a public health threat, she said. The US Centers for Disease Control and Prevention has been following these developments closely but has not been directly involved in the work, said Amy Kirby, program lead for the CDC’s National Wastewater Surveillance System. “The fact that someone can have this kind of infection and there’s every indication that they are still an active member of society and not just lying in the hospital – it’s just amazing,” he said. Using publicly available data on wastewater monitoring, Johnson has identified 37 of these cases in the US – but says there could be many more. Marc Johnson, a molecular biologist at the University of Missouri and co-author of that research. These individuals would be shedding at least a thousand times more virus than an average patient does, said Dr. Additional data has told similar stories. The lineage was linked to a single facility that served 30 people and was persistently present for more than a year. In a recent preprint study, about two dozen researchers set out to understand the origin of these cryptic lineages by closely examining the evolution of one from Wisconsin. One possible explanation for these “cryptic lineages” is that they can be traced back to people who have been living with a chronic – and serious – Covid-19 infection for years. SFO becomes first US airport to formally launch airplane wastewater testing for emerging Covid-19 variants (Photo by Justin Sullivan/Getty Images) Justin Sullivan/Getty Images Justice Department has sued to block JetBlue Airways proposed $3.8 billion takeover of Spirit Airlines to prevent industry consolidation. It has more severe pathogenicity, say scientists.įor now, the triple mutation has been classified in India as a "variant of interest" rather than "variant of concern".SAN FRANCISCO, CALIFORNIA - MARCH 07: A JetBlue Airways plane prepares to take off from San Francisco International Airport on Main San Francisco, California. The double mutant shows increased transmission rate and is seen to affect children too. For now, only 10 labs across India are involved in virus genome studies. How infectious the triple mutation is, or how deadly, will be known only from more studies. Where has the triple mutation been found?Įxperts believe mutations are driving the fresh infection spikes, not just in India but across the world. Now three Covid variants have combined to form the triple mutation. The more a virus spreads, the more it replicates and the more it mutates.Ī double mutation, which surfaced in India, was when two strains combined. That sets up a huge challenge for India, where genome sequencing is being done for less than one per cent of all cases, currently.Īccording to Dr Pai, the delay in detecting the double mutation may have contributed to the current virus spurt. But we need sequencing on war footing," Dr Pai told NDTV. For that we need to understand the disease. ![]() It is making lots of people sick very quickly," said Madhukar Pai, professor of epidemiology at McGill University. Scientists believe the new surges globally are driven by new variants.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |