diff --git a/docs/SymptomsCausedByVaccines/index.html b/docs/SymptomsCausedByVaccines/index.html
index d13d55058c5..235bbd3ae9a 100644
--- a/docs/SymptomsCausedByVaccines/index.html
+++ b/docs/SymptomsCausedByVaccines/index.html
@@ -31,6 +31,7 @@
   <script src="./js/PrrByKey2CsvConverter.js"></script>
   <script src="./js/PageInitializer.js"></script>
   <script src="./js/PrrByVaccineProvider.js"></script>
+  <script src="./js/PrrByKeyTable.js"></script>
   <script src="./js/PrrByVaccineTable.js"></script>
   <script src="./js/PrrBySymptomTable.js"></script>
   <script src="./js/PrrByKeyTableView.js"></script>
diff --git a/docs/SymptomsCausedByVaccines/js/PrrByKeyTable.js b/docs/SymptomsCausedByVaccines/js/PrrByKeyTable.js
new file mode 100644
index 00000000000..2c925d93330
--- /dev/null
+++ b/docs/SymptomsCausedByVaccines/js/PrrByKeyTable.js
@@ -0,0 +1,107 @@
+class PrrByKeyTable {
+
+    #tableElement;
+    #table;
+    #sumPrrs;
+    #prrByKey;
+    #keyColumnName;
+    #prrColumnName;
+    #shallMarkRowIfPrrTooHigh;
+
+    constructor({ tableElement, keyColumnName, prrColumnName, shallMarkRowIfPrrTooHigh }) {
+        this.#tableElement = tableElement;
+        this.#keyColumnName = keyColumnName;
+        this.#prrColumnName = prrColumnName;
+        this.#shallMarkRowIfPrrTooHigh = shallMarkRowIfPrrTooHigh;
+    }
+
+    initialize() {
+        this.#table = this.#createEmptyTable();
+    }
+
+    display(prrByKey) {
+        this.#prrByKey = prrByKey;
+        const key_prr_pairs = Object.entries(prrByKey);
+        this.#setTableRows(key_prr_pairs);
+    }
+
+    getDisplayedTableAsCsv(heading) {
+        return PrrByKey2CsvConverter.convertPrrByKey2Csv(
+            {
+                heading: heading,
+                columns: {
+                    keyColumn: this.#keyColumnName,
+                    prrColumn: this.#prrColumnName
+                },
+                prrByKey: this.#prrByKey
+            });
+    }
+
+    #createEmptyTable() {
+        return this.#tableElement.DataTable(
+            {
+                search:
+                {
+                    return: false
+                },
+                processing: true,
+                deferRender: true,
+                order: [[this.#getColumnIndex(this.#prrColumnName), "desc"]],
+                columnDefs:
+                    [
+                        {
+                            searchable: false,
+                            targets: [this.#getColumnIndex(this.#prrColumnName)]
+                        },
+                        {
+                            render: prr =>
+                                NumberWithBarElementFactory
+                                    .createNumberWithBarElement(
+                                        {
+                                            number: prr,
+                                            barLenInPercent: prr / this.#sumPrrs * 100
+                                        })
+                                    .outerHTML,
+                            targets: [this.#getColumnIndex(this.#prrColumnName)]
+                        }
+                    ],
+                createdRow: (row, data) => {
+                    if (this.#shallMarkRowIfPrrTooHigh) {
+                        this.#markRowIfPrrTooHigh(
+                            {
+                                prr: data[this.#getColumnIndex(this.#prrColumnName)],
+                                row: row
+                            });
+                    }
+                }
+            });
+    }
+
+    #markRowIfPrrTooHigh({ prr, row }) {
+        if (prr > 1.0) {
+            $(row).addClass('prrTooHigh');
+        }
+    }
+
+    #getColumnIndex(columnName) {
+        switch (columnName) {
+            case this.#keyColumnName:
+                return 0;
+            case this.#prrColumnName:
+                return 1;
+        }
+    }
+
+    #setTableRows(key_prr_pairs) {
+        this.#sumPrrs = this.#getSumPrrs(key_prr_pairs);
+        this.#table
+            .clear()
+            .rows.add(key_prr_pairs)
+            .draw();
+    }
+
+    #getSumPrrs(key_prr_pairs) {
+        const prrs = key_prr_pairs.map(key_prr_pair => key_prr_pair[1])
+        return Utils.sum(prrs);
+    }
+}
diff --git a/docs/SymptomsCausedByVaccines/js/PrrBySymptomTable.js b/docs/SymptomsCausedByVaccines/js/PrrBySymptomTable.js
index 28268aef55a..103111d7048 100644
--- a/docs/SymptomsCausedByVaccines/js/PrrBySymptomTable.js
+++ b/docs/SymptomsCausedByVaccines/js/PrrBySymptomTable.js
@@ -1,86 +1,25 @@
 class PrrBySymptomTable {
 
-    #tableElement;
-    #table;
-    #sumPrrs;
-    #prrBySymptom;
+    #delegate;
 
     constructor(tableElement) {
-        this.#tableElement = tableElement;
+        this.#delegate = new PrrByKeyTable({
+            tableElement: tableElement,
+            keyColumnName: 'Symptom',
+            prrColumnName: 'Proportional Reporting Ratio > 1',
+            shallMarkRowIfPrrTooHigh: false
+        });
     }
 
     initialize() {
-        this.#table = this.#createEmptyTable();
+        this.#delegate.initialize();
     }
 
     display(prrBySymptom) {
-        this.#prrBySymptom = prrBySymptom;
-        const symptom_prr_pairs = Object.entries(prrBySymptom);
-        this.#setTableRows(symptom_prr_pairs);
+        this.#delegate.display(prrBySymptom);
     }
 
     getDisplayedTableAsCsv(heading) {
-        return PrrByKey2CsvConverter.convertPrrByKey2Csv(
-            {
-                heading: heading,
-                columns: {
-                    keyColumn: 'Symptom',
-                    prrColumn: 'Proportional Reporting Ratio > 1'
-                },
-                prrByKey: this.#prrBySymptom
-            });
-    }
-
-    #createEmptyTable() {
-        return this.#tableElement.DataTable(
-            {
-                search:
-                {
-                    return: false
-                },
-                processing: true,
-                deferRender: true,
-                order: [[this.#getColumnIndex('Proportional Reporting Ratio > 1'), "desc"]],
-                columnDefs:
-                    [
-                        {
-                            searchable: false,
-                            targets: [this.#getColumnIndex('Proportional Reporting Ratio > 1')]
-                        },
-                        {
-                            render: prr =>
-                                NumberWithBarElementFactory
-                                    .createNumberWithBarElement(
-                                        {
-                                            number: prr,
-                                            barLenInPercent: prr / this.#sumPrrs * 100
-                                        })
-                                    .outerHTML,
-                            targets: [this.#getColumnIndex('Proportional Reporting Ratio > 1')]
-                        }
-                    ]
-            });
-    }
-
-    #getColumnIndex(columnName) {
-        switch (columnName) {
-            case 'Symptom':
-                return 0;
-            case 'Proportional Reporting Ratio > 1':
-                return 1;
-        }
-    }
-
-    #setTableRows(symptom_prr_pairs) {
-        this.#sumPrrs = this.#getSumPrrs(symptom_prr_pairs);
-        this.#table
-            .clear()
-            .rows.add(symptom_prr_pairs)
-            .draw();
-    }
-
-    #getSumPrrs(symptom_prr_pairs) {
-        const prrs = symptom_prr_pairs.map(symptom_prr_pair => symptom_prr_pair[1])
-        return Utils.sum(prrs);
+        return this.#delegate.getDisplayedTableAsCsv(heading);
     }
 }
diff --git a/docs/SymptomsCausedByVaccines/js/PrrByVaccineTable.js b/docs/SymptomsCausedByVaccines/js/PrrByVaccineTable.js
index 637b79e5cf9..fac70832c31 100644
--- a/docs/SymptomsCausedByVaccines/js/PrrByVaccineTable.js
+++ b/docs/SymptomsCausedByVaccines/js/PrrByVaccineTable.js
@@ -1,99 +1,25 @@
 class PrrByVaccineTable {
 
-    #tableElement;
-    #table;
-    #sumPrrs;
-    #prrByVaccine;
+    #delegate;
 
     constructor(tableElement) {
-        this.#tableElement = tableElement;
+        this.#delegate = new PrrByKeyTable({
+            tableElement: tableElement,
+            keyColumnName: 'Vaccine',
+            prrColumnName: 'Proportional Reporting Ratio',
+            shallMarkRowIfPrrTooHigh: true
+        });
     }
 
     initialize() {
-        this.#table = this.#createEmptyTable();
+        this.#delegate.initialize();
     }
 
     display(prrByVaccine) {
-        this.#prrByVaccine = prrByVaccine;
-        const vaccine_prr_pairs = Object.entries(prrByVaccine);
-        this.#setTableRows(vaccine_prr_pairs);
+        this.#delegate.display(prrByVaccine);
     }
 
     getDisplayedTableAsCsv(heading) {
-        return PrrByKey2CsvConverter.convertPrrByKey2Csv(
-            {
-                heading: heading,
-                columns: {
-                    keyColumn: 'Vaccine',
-                    prrColumn: 'Proportional Reporting Ratio'
-                },
-                prrByKey: this.#prrByVaccine
-            });
-    }
-
-    #createEmptyTable() {
-        return this.#tableElement.DataTable(
-            {
-                search:
-                {
-                    return: false
-                },
-                processing: true,
-                deferRender: true,
-                order: [[this.#getColumnIndex('Proportional Reporting Ratio'), "desc"]],
-                columnDefs:
-                    [
-                        {
-                            searchable: false,
-                            targets: [this.#getColumnIndex('Proportional Reporting Ratio')]
-                        },
-                        {
-                            render: prr =>
-                                NumberWithBarElementFactory
-                                    .createNumberWithBarElement(
-                                        {
-                                            number: prr,
-                                            barLenInPercent: prr / this.#sumPrrs * 100
-                                        })
-                                    .outerHTML,
-                            targets: [this.#getColumnIndex('Proportional Reporting Ratio')]
-                        }
-                    ],
-                createdRow: (row, data) => {
-                    this.#markRowIfPrrTooHigh(
-                        {
-                            prr: data[this.#getColumnIndex('Proportional Reporting Ratio')],
-                            row: row
-                        });
-                }
-            });
-    }
-
-    #markRowIfPrrTooHigh({ prr, row }) {
-        if (prr > 1.0) {
-            $(row).addClass('prrTooHigh');
-        }
-    }
-
-    #getColumnIndex(columnName) {
-        switch (columnName) {
-            case 'Vaccine':
-                return 0;
-            case 'Proportional Reporting Ratio':
-                return 1;
-        }
-    }
-
-    #setTableRows(vaccine_prr_pairs) {
-        this.#sumPrrs = this.#getSumPrrs(vaccine_prr_pairs);
-        this.#table
-            .clear()
-            .rows.add(vaccine_prr_pairs)
-            .draw();
-    }
-
-    #getSumPrrs(vaccine_prr_pairs) {
-        const prrs = vaccine_prr_pairs.map(vaccine_prr_pair => vaccine_prr_pair[1])
-        return Utils.sum(prrs);
+        return this.#delegate.getDisplayedTableAsCsv(heading);
     }
 }
diff --git a/test/SymptomsCausedByVaccines/index.test.html b/test/SymptomsCausedByVaccines/index.test.html
index a775a4aa996..8f9b260d3ca 100644
--- a/test/SymptomsCausedByVaccines/index.test.html
+++ b/test/SymptomsCausedByVaccines/index.test.html
@@ -14,6 +14,7 @@
   <script src="../../docs/SymptomsCausedByVaccines/js/PrrByKey2CsvConverter.js"></script>
   <script src="../../docs/SymptomsCausedByVaccines/js/PageInitializer.js"></script>
   <script src="../../docs/SymptomsCausedByVaccines/js/PrrByVaccineProvider.js"></script>
+  <script src="../../docs/SymptomsCausedByVaccines/js/PrrByKeyTable.js"></script>
   <script src="../../docs/SymptomsCausedByVaccines/js/PrrByVaccineTable.js"></script>
   <script src="../../docs/SymptomsCausedByVaccines/js/PrrBySymptomTable.js"></script>
   <script src="../../docs/SymptomsCausedByVaccines/js/PrrByKeyTableView.js"></script>