there was  a crowdsourced vaccine,   
   that could be created regionally by  
    most  pharmaceutical   companies    
   without  much  effort,  and  it was  
    estimated  that   it   had  saved   
      tens      of      millions.       
                                        
 but it was  not officially recognized by 
 the  world  health organization,  and as 
 such did not  give  what the  sanctioned 
 (and   unobtainable)   ones   did:   the 
 subskin  chip that would  let  you enter 
      (or     leave)      cities.       
                                        
  and that's why, eventually, we would  
   create our  own chips.  they  were   
  larger than the official ones, and a  
    little   unstable,  and   needed    
    maintenance.   but  they  worked!   
  or, they  would work together with a  
   little something to  make the guard  
      look    the     other    way.     
                                      
                                      
                                          
   but the scanner showed green, so...