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...