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...