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...