Hello, Greetings. Please Register or Log in to view the hidden image!ng term IgG antibodies are developed post infection or post vaccination. Is it normal physiology or some abnormal pathology esp. in the presence of better option of Immunological Memory available to body due to some traces of infection/virus remain existed in body for long term? I think, normally Immunological memory is developed post infection or post vaccination but in case of Covid-19, it is long term antibodies. Why and how? Furthur Few patients may also get Long Covid post Covid infection as per this link: COVID-19 (coronavirus): Long-term effects https://www.mayoclinic.org/diseases...th/coronavirus-long-term-effects/art-20490351 many patients may get Long Covid post Covid infection. Is it possible that such long term antibodies pathological impact if possible isresponsible factor to some part of this long Covid? Best wishes.