After both a prior COVID-19 infection and two doses of Pfizer or Moderna's vaccine, some people's immune systems develop an incredible ability to respond to the virus. After both a past Covid infection and vaccination, patients may have 'superhuman immunity' against the coronavirus, studies suggest. These individuals had far readier immune systems to fight the variant, even though they weren't previously infected with this variant. For all these different variants, the 'hybrid immunity' patients' immune systems were able to recognize the invaders and build up antibodies to fight them off. Immunologists intend to hybrid coronavirus immunity more closely, to develop more successful vaccines against this and other diseases.

Source: Daily Mail September 07, 2021 20:03 UTC