anchor.diff:  ​​Anguilla,​,​Widespread transmission
   Argentina,Tucumán Province,Widespread transmission
   Barbados,,Widespread transmission
  -Belize,,Widespread transmission
   Bolivia,,Widespread transmission
  -Bonaire,,Widespread transmission
   Brazil,,Widespread transmission
   Cape Verde,,Widespread transmission
   Colombia,,Widespread transmission
  
positive.code: Grenada,,Sporadic transmission
  Guinea-Bissau,,Sporadic transmission
  ​Malaysia,​,Sporadic transmission​
  ​Philippines,​,​Sporadic transmission
  Saba,,Sporadic transmission
  Sint Eustatius,,Sporadic transmission
  Turks and Caicos Islands,,Sporadic transmission
  ​Vietnam,​,​Sporadic transmission
  
negative.code: Panama,,Widespread transmission
  Paraguay,,Widespread transmission
  Peru,,Widespread transmission
  ​Philippines​​,​,​​Widespread transmission​
  Puerto Rico,,Widespread transmission
  Saint Lucia,,Widespread transmission
  Saint Martin,,Widespread transmission
  