anchor.diff:  "Poliovirus infection, nonparalytic",5884-2
   "Poliovirus infection, nonparalytic",5886-7
   "Poliovirus infection, nonparalytic",5887-5
  +"Poliomyelitis, paralytic",10736-7
  +"Poliomyelitis, paralytic",10737-5
  +"Poliomyelitis, paralytic",12272-1
  +"Poliomyelitis, paralytic",14488-1
  +"Poliomyelitis, paralytic",14489-9
  +"Poliomyelitis, paralytic",14491-5
  +"Poliomyelitis, paralytic",16284-2
  +"Poliomyelitis, paralytic",5883-4
  +"Poliomyelitis, paralytic",5884-2
  +"Poliomyelitis, paralytic",5886-7
  +"Poliomyelitis, paralytic",5887-5
   Powassan virus neuroinvasive disease,10896-9
   Powassan virus neuroinvasive disease,10897-7
   Powassan virus neuroinvasive disease,10898-5
  
positive.code: SHIGELLOSIS,636-1
  SHIGELLOSIS,6463-4
  Vancomycin-resistant Staphylococcus aureus (VRSA),610-6
  Shiga toxin-producing Escherichia coli (STEC),10851-4
  Shiga toxin-producing Escherichia coli (STEC),11475-1
  Shiga toxin-producing Escherichia coli (STEC),12276-2
  
negative.code: Hantavirus pulmonary syndrome,35393-8
  Hantavirus pulmonary syndrome,7898-0
  Hantavirus pulmonary syndrome,7899-8
  Hantavirus infection,23867-5
  Hantavirus infection,23868-3
  Hantavirus infection,26654-4
  Hantavirus infection,35393-8
  Hantavirus infection,7898-0
  Hantavirus infection,7899-8
  "HEPATITIS A, acute",13950-1
  "HEPATITIS A, acute",13951-9
  "HEPATITIS A, acute",22312-3
  