Tea cells can be very important in limiting the scope of an infection. They're harder to measure than anna bodies, and so they haven't been studied as much. We've got a lot of evidence that omicronizing antibodies can evade tea cells. But we don't really have those hard numbers yet.
Much of the coverage of COVID immunity often focuses on antibody response and for good reason - these small, y-shaped proteins can detect, and in some cases neutralise, viruses like SARS-CoV-2. But as variants like Omicron evolve to evade antibodies, the role of another part of the immune system, T cells, has been brought into sharper focus. These immune cells work in a different way to antibodies, attacking infected cells rather than the virus itself, which can make their response broader and more robust. Now, research is showing that, unlike antibodies, T cell potency is not impacted by the mutations in variants like Omicron. In this episode of Coronapod, we ask why T cells are so often overlooked, and what role they might be playing in our protection from the coronavirus.News:‘Killer’ immune cells still recognize Omicron variantSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
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