diff --git a/src/CountriesColumnMerger.py b/src/CountriesColumnMerger.py
index 6cdd1a8c805..748fa2a7182 100644
--- a/src/CountriesColumnMerger.py
+++ b/src/CountriesColumnMerger.py
@@ -8,8 +8,3 @@ class CountriesColumnMerger:
         dst[COUNTRIES] = CountriesMerger.mergeSrcIntoDst(
             dst = dst[COUNTRIES],
             src = src[COUNTRIES])
-
-    @staticmethod
-    def mergeCountriesColumnOfSrcsIntoCountriesColumnOfDst(srcs, dst):
-        for src in srcs:
-            CountriesColumnMerger.mergeCountriesColumnOfSrcIntoCountriesColumnOfDst(src = src, dst = dst)
diff --git a/src/CountriesColumnMergerTest.py b/src/CountriesColumnMergerTest.py
index 58b42e8148c..8f13d6b3b46 100644
--- a/src/CountriesColumnMergerTest.py
+++ b/src/CountriesColumnMergerTest.py
@@ -51,56 +51,3 @@ class CountriesColumnMergerTest(unittest.TestCase):
                     ],
                     name = 'VAX_LOT')),
             check_dtype = True)
-
-    def test_mergeCountriesColumnOfSrcsIntoCountriesColumnOfDst(self):
-        # Given
-        dst = TestHelper.createDataFrame(
-                columns = ['Countries'],
-                data = [  [[]],
-                          [['France', 'United Kingdom']],
-                          [['France']]],
-                index = pd.Index(
-                    [
-                        '016M20A',
-                        '030L20B',
-                        '030L20A'
-                    ],
-                    name = 'VAX_LOT'))
-
-        src1 = TestHelper.createDataFrame(
-                columns = ['Countries'],
-                data = [  [['Germany1']]],
-                index = pd.Index(
-                    [
-                        '030L20B'
-                    ],
-                    name = 'VAX_LOT'))
-
-        src2 = TestHelper.createDataFrame(
-                columns = ['Countries'],
-                data = [  [['Germany2']]],
-                index = pd.Index(
-                    [
-                        '030L20B'
-                    ],
-                    name = 'VAX_LOT'))
-
-        # When
-        CountriesColumnMerger.mergeCountriesColumnOfSrcsIntoCountriesColumnOfDst(dst = dst, srcs = [src1, src2])
-
-        # Then
-        assert_frame_equal(
-            dst,
-            TestHelper.createDataFrame(
-                columns = ['Countries'],
-                data = [  [[]],
-                          [['France', 'Germany1', 'Germany2', 'United Kingdom']],
-                          [['France']]],
-                index = pd.Index(
-                    [
-                        '016M20A',
-                        '030L20B',
-                        '030L20A'
-                    ],
-                    name = 'VAX_LOT')),
-            check_dtype = True)