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...