diff --git a/src/HowBadIsMyBatch.ipynb b/src/HowBadIsMyBatch.ipynb
index fa297c545a9..a6099f3ce51 100644
--- a/src/HowBadIsMyBatch.ipynb
+++ b/src/HowBadIsMyBatch.ipynb
@@ -332,8 +332,8 @@
     "    \n",
     "    @staticmethod\n",
     "    def addCountryColumn(dataFrame):\n",
-    "        dataFrame['Country'] = CountryColumnAdder.getCountryColumn(dataFrame)\n",
-    "        return dataFrame.astype({'Country': \"string\"})\n",
+    "        dataFrame['COUNTRY'] = CountryColumnAdder.getCountryColumn(dataFrame)\n",
+    "        return dataFrame.astype({'COUNTRY': \"string\"})\n",
     "\n",
     "    @staticmethod\n",
     "    def getCountryColumn(dataFrame):\n",
@@ -422,7 +422,7 @@
     "        return self.batchCodeTableByCountryFactory.createBatchCodeTableByCountry(country)\n",
     "\n",
     "    def _createInternationalLotTable(self):\n",
-    "        return SummationTableFactory.createSummationTableHavingSevereReportsColumn(self.dataFrame.groupby(self.dataFrame['Country']))\n"
+    "        return SummationTableFactory.createSummationTableHavingSevereReportsColumn(self.dataFrame.groupby(self.dataFrame['COUNTRY']))\n"
    ]
   },
   {
@@ -462,7 +462,7 @@
     "        return SummationTableFactory.createSummationTableHavingSevereReportsColumn(\n",
     "            self.dataFrame.groupby(\n",
     "                [\n",
-    "                    self.dataFrame['Country'],\n",
+    "                    self.dataFrame['COUNTRY'],\n",
     "                    self.dataFrame['VAX_LOT']\n",
     "                ]))\n",
     "\n",
@@ -1124,7 +1124,7 @@
     "    def test_createInternationalLotTable(self):\n",
     "        # Given\n",
     "        dataFrame = TestHelper.createDataFrame(\n",
-    "            columns = ['DIED', 'L_THREAT', 'DISABLE', 'VAX_TYPE', 'VAX_MANU', 'VAX_LOT', 'VAX_DOSE_SERIES', 'SPLTTYPE',                  'HOSPITAL', 'ER_VISIT', 'Country'],\n",
+    "            columns = ['DIED', 'L_THREAT', 'DISABLE', 'VAX_TYPE', 'VAX_MANU', 'VAX_LOT', 'VAX_DOSE_SERIES', 'SPLTTYPE',                  'HOSPITAL', 'ER_VISIT', 'COUNTRY'],\n",
     "            data = [  [1,      0,          0,         'COVID19',  'MODERNA',  '016M20A', '2',               'GBPFIZER INC2020486806',    0,          0,          'United Kingdom'],\n",
     "                      [1,      0,          0,         'COVID19',  'MODERNA',  '030L20A', '1',               'FRMODERNATX, INC.MOD20224', 0,          0,          'France'],\n",
     "                      [1,      1,          1,         'COVID19',  'MODERNA',  '030L20B', '1',               'FRMODERNATX, INC.MOD20224', 0,          0,          'France'],\n",
@@ -1156,12 +1156,12 @@
     "                        'United Kingdom',\n",
     "                        'Unknown Country'\n",
     "                    ],\n",
-    "                    name = 'Country')))\n",
+    "                    name = 'COUNTRY')))\n",
     "\n",
     "    def test_createBatchCodeTableByCountry(self):\n",
     "        # Given\n",
     "        dataFrame = TestHelper.createDataFrame(\n",
-    "            columns = ['DIED', 'L_THREAT', 'DISABLE', 'VAX_TYPE', 'VAX_MANU',         'VAX_LOT', 'VAX_DOSE_SERIES', 'SPLTTYPE',                  'HOSPITAL', 'ER_VISIT', 'Country'],\n",
+    "            columns = ['DIED', 'L_THREAT', 'DISABLE', 'VAX_TYPE', 'VAX_MANU',         'VAX_LOT', 'VAX_DOSE_SERIES', 'SPLTTYPE',                  'HOSPITAL', 'ER_VISIT', 'COUNTRY'],\n",
     "            data = [  [1,      0,          0,         'COVID19',  'PFIZER\\BIONTECH',  '016M20A', '2',               'GBPFIZER INC2020486806',    0,          0,          'United Kingdom'],\n",
     "                      [0,      0,          0,         'COVID19',  'MODERNA',          '030L20A', '1',               'FRMODERNATX, INC.MOD20224', 0,          0,          'France'],\n",
     "                      [1,      1,          1,         'COVID19',  'MODERNA',          '030L20B', '1',               'FRMODERNATX, INC.MOD20224', 0,          0,          'France'],\n",
@@ -1195,7 +1195,7 @@
     "    def test_createBatchCodeTableByNonExistingCountry(self):\n",
     "        # Given\n",
     "        dataFrame = TestHelper.createDataFrame(\n",
-    "            columns = ['DIED', 'L_THREAT', 'DISABLE', 'VAX_TYPE', 'VAX_MANU',         'VAX_LOT', 'VAX_DOSE_SERIES', 'SPLTTYPE',                  'HOSPITAL', 'ER_VISIT', 'Country'],\n",
+    "            columns = ['DIED', 'L_THREAT', 'DISABLE', 'VAX_TYPE', 'VAX_MANU',         'VAX_LOT', 'VAX_DOSE_SERIES', 'SPLTTYPE',                  'HOSPITAL', 'ER_VISIT', 'COUNTRY'],\n",
     "            data = [  [1,      0,          0,         'COVID19',  'PFIZER\\BIONTECH',  '016M20A', '2',               'GBPFIZER INC2020486806',    0,          0,          'United Kingdom'],\n",
     "                      [0,      0,          0,         'COVID19',  'MODERNA',          '030L20A', '1',               'FRMODERNATX, INC.MOD20224', 0,          0,          'France'],\n",
     "                      [1,      1,          1,         'COVID19',  'MODERNA',          '030L20B', '1',               'FRMODERNATX, INC.MOD20224', 0,          0,          'France'],\n",
@@ -1245,7 +1245,7 @@
     "def getVaersForYears(years):\n",
     "    vaersDescrs = _getVaersDescrReader().readVaersDescrsForYears(years)\n",
     "    dataFrame = VaersDescr2DataFrameConverter.createDataFrameFromDescrs(vaersDescrs)\n",
-    "    dataFrame['Country'] = 'United States'\n",
+    "    dataFrame['COUNTRY'] = 'United States'\n",
     "    DataFrameNormalizer.normalize(dataFrame)\n",
     "    dataFrame = SevereColumnAdder.addSevereColumn(dataFrame)\n",
     "    return dataFrame\n",
@@ -1492,7 +1492,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "countries = sorted(internationalVaers['Country'].unique())"
+    "countries = sorted(internationalVaers['COUNTRY'].unique())"
    ]
   },
   {