diff --git a/docs/SymptomsCausedByDrugs/js/PrrByVaccineProvider.js b/docs/SymptomsCausedByDrugs/js/PrrByVaccineProvider.js
index 5f7cff61a54..c41b5eaa99a 100644
--- a/docs/SymptomsCausedByDrugs/js/PrrByVaccineProvider.js
+++ b/docs/SymptomsCausedByDrugs/js/PrrByVaccineProvider.js
@@ -1,10 +1,10 @@
 class PrrByVaccineProvider {
 
     static getPrrByVaccine(symptom) {
-        return fetch(`./data/ProportionalReportingRatios/symptoms/${symptom}.json`).then(response => response.json());
+        return fetch(`./data/ProportionalReportingRatios/symptoms/${symptom}`).then(response => response.json());
     }
 
     static getPrrBySymptom(vaccine) {
-        return fetch(`./data/ProportionalReportingRatios/vaccines/${vaccine}.json`).then(response => response.json());
+        return fetch(`./data/ProportionalReportingRatios/vaccines/${vaccine}`).then(response => response.json());
     }
 }
\ No newline at end of file
diff --git a/src/SymptomsCausedByVaccines/HtmlUpdater.py b/src/SymptomsCausedByVaccines/HtmlUpdater.py
index 1747a207aaf..34d604b962f 100644
--- a/src/SymptomsCausedByVaccines/HtmlUpdater.py
+++ b/src/SymptomsCausedByVaccines/HtmlUpdater.py
@@ -5,14 +5,19 @@ from SymptomsCausedByVaccines.HtmlUtils import getSymptomOptions, getVaccineOpti
 from SymptomsCausedByVaccines.OptionsSetter import OptionsSetter
 
 
-def updateHtmlFile(symptoms, vaccines, htmlFile, defaultSelectVaccineOptionText = 'Select Vaccine'):
+def updateHtmlFile(symptomsDescr, vaccinesDescr, htmlFile, defaultSelectVaccineOptionText = 'Select Vaccine'):
     _saveOptions(
-        options = getSymptomOptions(symptoms),
+        options = getSymptomOptions(
+            symptoms = symptomsDescr['symptoms'],
+            filenameBySymptom = symptomsDescr['filenameBySymptom']),
         htmlFile = htmlFile,
         selectElementId = 'symptomSelect')
     
     _saveOptions(
-        options = getVaccineOptions(vaccines, defaultSelectVaccineOptionText),
+        options = getVaccineOptions(
+            vaccines = vaccinesDescr['vaccines'],
+            filenameByDrug = vaccinesDescr['filenameByDrug'],
+            defaultOptionText = defaultSelectVaccineOptionText),
         htmlFile = htmlFile,
         selectElementId = 'vaccineSelect')
 
diff --git a/src/SymptomsCausedByVaccines/HtmlUtils.py b/src/SymptomsCausedByVaccines/HtmlUtils.py
index cfff42d3c85..d3d79073769 100644
--- a/src/SymptomsCausedByVaccines/HtmlUtils.py
+++ b/src/SymptomsCausedByVaccines/HtmlUtils.py
@@ -1,20 +1,28 @@
 import html
 
-def getVaccineOptions(vaccines, defaultOptionText):
-    return _getOptionsWithDefaultOption(defaultOptionText = defaultOptionText, values = vaccines)
+def getVaccineOptions(vaccines, filenameByDrug, defaultOptionText):
+    return _getOptionsWithDefaultOption(
+        defaultOptionText = defaultOptionText,
+        values = vaccines,
+        filenameByValue = filenameByDrug)
 
 
-def getSymptomOptions(symptoms):
-    return _getOptionsWithDefaultOption(defaultOptionText = 'Select Symptom', values = symptoms)
+def getSymptomOptions(symptoms, filenameBySymptom):
+    return _getOptionsWithDefaultOption(
+        defaultOptionText = 'Select Symptom',
+        values = symptoms,
+        filenameByValue = filenameBySymptom)
 
 
-def _getOptionsWithDefaultOption(defaultOptionText, values):
-    return ['<option hidden disabled selected value>{defaultOptionText}</option>'.format(defaultOptionText = defaultOptionText)] + _getOptions(values)
+def _getOptionsWithDefaultOption(defaultOptionText, values, filenameByValue):
+    return ['<option hidden disabled selected value>{defaultOptionText}</option>'.format(defaultOptionText = defaultOptionText)] + _getOptions(values, filenameByValue)
 
 
-def _getOptions(values):
-    return [_getOption(value) for value in values]
+def _getOptions(values, filenameByValue):
+    return [_getOption(filename = filenameByValue[value], displayValue = value) for value in values]
 
 
-def _getOption(value):
-    return '<option value="{value}">{value}</option>'.format(value = html.escape(value))
+def _getOption(filename, displayValue):
+    return '<option value="{value}">{displayValue}</option>'.format(
+        value = filename,
+        displayValue = html.escape(displayValue))
diff --git a/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersister.py b/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersister.py
index 4dcc1b5d98e..171c2be699d 100644
--- a/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersister.py
+++ b/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersister.py
@@ -10,4 +10,4 @@ def saveProportionalReportingRatios(prrBySymptomByDrug, directory):
         filename = f'{i}.json'
         filenameByDrug[drug] = filename
         IOUtils.saveDictAsJson(prrBySymptom, f'{directory}/{filename}')
-    IOUtils.saveDictAsJson(filenameByDrug, f'{directory}/filenameByDrug.json')    
+    return filenameByDrug    
diff --git a/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersisterTest.py b/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersisterTest.py
index 5f412d384f3..7aa313d280b 100644
--- a/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersisterTest.py
+++ b/src/SymptomsCausedByVaccines/ProportionalReportingRatiosPersisterTest.py
@@ -18,16 +18,14 @@ class ProportionalReportingRatiosPersisterTest(unittest.TestCase):
         directory = 'src/tmp/vaccines'
         
         # When
-        saveProportionalReportingRatios(prrBySymptomByDrug, directory)
+        filenameByDrug = saveProportionalReportingRatios(prrBySymptomByDrug, directory)
         
         # Then
         drugFilename = '1.json'
         self.assertDictEqual(
             ProportionalReportingRatiosPersisterTest.readJsonFile(f'{directory}/{drugFilename}'),
             prrBySymptom)
-        self.assertDictEqual(
-            ProportionalReportingRatiosPersisterTest.readJsonFile(f'{directory}/filenameByDrug.json'),
-            { drug: drugFilename })
+        self.assertDictEqual(filenameByDrug, { drug: drugFilename })
 
     @staticmethod
     def readJsonFile(file):