PTI reported. The study was published after tracking antibody response from vaccinated and those who recovered from individuals for two years.
A total of 98 recovered persons and 73 people with no prior infection were analysed by researchers during the study. Both of these groups had received vaccination with the mMRA-based Pfizer vaccine.
The researchers from the Technical University of Munich (TUM) in Germany found a total of three exposures to the viral spike protein lead to the production of virus neutralising antibodies that are high in quantity as well as quality.
These high-quality antibodies bind to the viral spike protein more vigorously and are also capable of effectively fighting the Omicron variant.