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NEW YORK: Researchers have found that in lots of Covid sufferers, the immune system is threatened by a depletion of sure important cells, suggesting eerie parallels with HIV.
In Could, John Wherry, an immunologist on the College of Pennsylvania, and his colleagues posted on-line a paper exhibiting a variety of immune system faults in severely in poor health sufferers, together with a lack of virusfighting T cells in elements of the physique. One other research, performed by Adrian Hayday, an immunologist at King’s Faculty London, discovered a rise in ranges of a molecule referred to as IP10, which sends T cells to areas of the physique the place they’re wanted in Covid sufferers. Ordinarily, IP10 ranges are solely briefly elevated. However in Covid-19 sufferers IP10 ranges go up and keep up. The end result: a confused response from the immune system.