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...