anchor.diff:  report_date,location,location_type,data_field,data_field_code,time_period,time_period_type,value,unit
   2016-09-01,Colombia-Valle,province,zika_confirmed_laboratory_pregnant,CO0005,NA,NA,701,cases
  -2016-09-01,Colombia-NorteSantander,province,zika_confirmed_laboratory_pregnant,CO0005,NA,NA,86,cases
  +2016-09-01,Colombia-Norte_Santander,province,zika_confirmed_laboratory_pregnant,CO0005,NA,NA,86,cases
   2016-09-01,Colombia-Barranquilla,province,zika_confirmed_laboratory_pregnant,CO0005,NA,NA,181,cases
   2016-09-01,Colombia-Huila,province,zika_confirmed_laboratory_pregnant,CO0005,NA,NA,697,cases
   2016-09-01,Colombia-Santander,province,zika_confirmed_laboratory_pregnant,CO0005,NA,NA,364,cases
  
positive.code: 2016-09-01,Colombia-Cesar,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,279,cases
  2016-09-01,Colombia-Antioquia,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,288,cases
  2016-09-01,Colombia-Casanare,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,302,cases
  2016-09-01,Colombia-SantaMarta,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,352,cases
  2016-09-01,Colombia-Sucre,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,323,cases
  2016-09-01,Colombia-Magdalena,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,315,cases
  2016-09-01,Colombia-Bogot,province,zika_suspected_clinic_pregnant,CO0008,NA,NA,186,cases
  
negative.code: 2016-09-01,Colombia-Cesar,province,zika_suspected_pregnant,CO0006,NA,NA,26,cases
  2016-09-01,Colombia-Antioquia,province,zika_suspected_pregnant,CO0006,NA,NA,25,cases
  2016-09-01,Colombia-Casanare,province,zika_suspected_pregnant,CO0006,NA,NA,1,cases
  2016-09-01,Colombia-Santa_Marta,province,zika_suspected_pregnant,CO0006,NA,NA,0,cases
  2016-09-01,Colombia-Sucre,province,zika_suspected_pregnant,CO0006,NA,NA,55,cases
  2016-09-01,Colombia-Magdalena,province,zika_suspected_pregnant,CO0006,NA,NA,16,cases
  2016-09-01,Colombia-Bogot,province,zika_suspected_pregnant,CO0006,NA,NA,43,cases
  