related_tweet: @kdubzz @tomko_1 suboptimal vaccine (leaky vaccine, because only spike protein antigen has been used for manufacture) cause survival pressure on the virus &amp; induce selective mutations to escape the antibody attack. mutated virus is the new variant.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  nothing to do with unvaccinated!