$INO Post-infection coronavirus immunity usually robust after 8 months, study shows By Joel Achenbach Jan. 7, 2021 at 6:14 p.m. EST The review of blood samples from nearly 200 patients also saw that multiple elements of the immune system — not just antibodies — continued to be effective at recognizing and responding to the virus. The human body appears to retain a memory of the invader and is poised to generate a coordinated counterattack of antibodies and killer T cells quickly if exposed again. The authors of the new study said they believe their findings would apply to the United Kingdom variant as well as the more common coronavirus. The reason: The immune responses target hundreds of different pieces of the virus, few of which are affected by the mutations seen so far. The consensus is that the coronavirus would need a tremendous number of transmission-enhancing mutations in concert to evade natural or vaccine-induced immunity. and
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