anchor.diff:  Nicaragua,Increasing or widespread transmission
   Panama,Increasing or widespread transmission
   Papua New Guinea,Sporadic transmission
  -​Paraguay,​Increasing or widespread transmission
  +Paraguay,Increasing or widespread transmission
  +Peru,Increasing or widespread transmission
   Philippines,Sporadic transmission
   Puerto Rico,Increasing or widespread transmission
   Saint Lucia,Sporadic transmission
   Saint Martin,Increasing or widespread transmission
  -​Saint Vincent and the Grenadines,​Sporadic transmission
  +Saint Vincent and the Grenadines,Sporadic transmission
   Saint-Barthélemy,Sporadic transmission
   Samoa,Increasing or widespread transmission
   Sint Maarten,Sporadic transmission
   Suriname,Increasing or widespread transmission
  -Thailand,​Sporadic transmission
   Tonga,Increasing or widespread transmission
   Trinidad and Tobago,Increasing or widespread transmission
   US Virgin Islands,Increasing or widespread transmission
   Venezuela,Increasing or widespread transmission
   Vietnam,Increasing or widespread transmission
  -US Virgin Islands,Increasing or widespread transmission
  
positive.code: country,current_zika_transmission
  American Samoa,Increasing or widespread transmission
  Aruba,Increasing or widespread transmission
  Barbados,Increasing or widespread transmission
  Belize,Sporadic transmission
  
negative.code: Costa Rica,Increasing or widespread transmission
  Cuba,Sporadic transmission
  Curaçao,Increasing or widespread transmission
  Dominica,Increasing or widespread transmission
  Dominican Republic,Increasing or widespread transmission
  Ecuador,Increasing or widespread transmission
  El Salvador,Increasing or widespread transmission
  Fiji,Increasing or widespread transmission
  French Guiana,Increasing or widespread transmission
  Grenada,Sporadic transmission
  Guadeloupe,Increasing or widespread transmission
  Guatemala,Increasing or widespread transmission
  Guyana,Increasing or widespread transmission
  Haiti,Increasing or widespread transmission
  Honduras,Increasing or widespread transmission
  Jamaica,Increasing or widespread transmission
  Kosrae,Increasing or widespread transmission
  Marshall Islands,Increasing or widespread transmission
  Martinique,Increasing or widespread transmission
  Mexico,Increasing or widespread transmission
  