diff --git a/smash/web/models/mail_template.py b/smash/web/models/mail_template.py
index dcd25850664665b63ed05f920b04fbb00df9568b..e11033eccedff8782bce8d11544432a4a88cb2cb 100644
--- a/smash/web/models/mail_template.py
+++ b/smash/web/models/mail_template.py
@@ -82,34 +82,34 @@ class MailTemplate(models.Model):
         ("##S_ND_NUMBER##", "Subject's ND number", ""),
         ("##S_DATE_ADDED##", "Subject's date of creation", get_formatted_time(DATE_FORMAT_SHORT)),
 
-        ("##VIRUS_1_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 1",
+        ("##S_VIRUS_1_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 1",
          get_formatted_time(DATE_FORMAT_SHORT)),
-        ("##VIRUS_2_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 2",
+        ("##S_VIRUS_2_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 2",
          get_formatted_time(DATE_FORMAT_SHORT)),
-        ("##VIRUS_3_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 3",
+        ("##S_VIRUS_3_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 3",
          get_formatted_time(DATE_FORMAT_SHORT)),
-        ("##VIRUS_4_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 4",
+        ("##S_VIRUS_4_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 4",
          get_formatted_time(DATE_FORMAT_SHORT)),
-        ("##VIRUS_5_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 5",
+        ("##S_VIRUS_5_SAMPLE_COLLECTION_DATE##", "Virus test collection date in visit 5",
          get_formatted_time(DATE_FORMAT_SHORT)),
 
-        ("##VIRUS_1_RESULT##", "Virus test results in visit 1", "Positive"),
-        ("##VIRUS_2_RESULT##", "Virus test results in visit 2", "Negative"),
-        ("##VIRUS_3_RESULT##", "Virus test results in visit 3", "Inconclusive"),
-        ("##VIRUS_4_RESULT##", "Virus test results in visit 4", ""),
-        ("##VIRUS_5_RESULT##", "Virus test results in visit 5", ""),
+        ("##S_VIRUS_1_RESULT##", "Virus test results in visit 1", "Positive"),
+        ("##S_VIRUS_2_RESULT##", "Virus test results in visit 2", "Negative"),
+        ("##S_VIRUS_3_RESULT##", "Virus test results in visit 3", "Inconclusive"),
+        ("##S_VIRUS_4_RESULT##", "Virus test results in visit 4", ""),
+        ("##S_VIRUS_5_RESULT##", "Virus test results in visit 5", ""),
 
-        ("##VIRUS_1_IGA_STATUS##", "IgA Status in visit 1", "Positive"),
-        ("##VIRUS_2_IGA_STATUS##", "IgA Status in visit 2", "Negative"),
-        ("##VIRUS_3_IGA_STATUS##", "IgA Status in visit 3", "Borderline"),
-        ("##VIRUS_4_IGA_STATUS##", "IgA Status in visit 4", ""),
-        ("##VIRUS_5_IGA_STATUS##", "IgA Status in visit 5", ""),
+        ("##S_VIRUS_1_IGA_STATUS##", "IgA Status in visit 1", "Positive"),
+        ("##S_VIRUS_2_IGA_STATUS##", "IgA Status in visit 2", "Negative"),
+        ("##S_VIRUS_3_IGA_STATUS##", "IgA Status in visit 3", "Borderline"),
+        ("##S_VIRUS_4_IGA_STATUS##", "IgA Status in visit 4", ""),
+        ("##S_VIRUS_5_IGA_STATUS##", "IgA Status in visit 5", ""),
 
-        ("##VIRUS_1_IGG_STATUS##", "IgG Status in visit 1", "Positive"),
-        ("##VIRUS_2_IGG_STATUS##", "IgG Status in visit 2", "Negative"),
-        ("##VIRUS_3_IGG_STATUS##", "IgG Status in visit 3", "Borderline"),
-        ("##VIRUS_4_IGG_STATUS##", "IgG Status in visit 4", ""),
-        ("##VIRUS_5_IGG_STATUS##", "IgG Status in visit 5", ""),
+        ("##S_VIRUS_1_IGG_STATUS##", "IgG Status in visit 1", "Positive"),
+        ("##S_VIRUS_2_IGG_STATUS##", "IgG Status in visit 2", "Negative"),
+        ("##S_VIRUS_3_IGG_STATUS##", "IgG Status in visit 3", "Borderline"),
+        ("##S_VIRUS_4_IGG_STATUS##", "IgG Status in visit 4", ""),
+        ("##S_VIRUS_5_IGG_STATUS##", "IgG Status in visit 5", ""),
 
     ]
 
@@ -322,20 +322,20 @@ class MailTemplate(models.Model):
                 '##S_KNOWN_LANGUAGES##': ", ".join([l.name for l in study_subject.subject.languages.all()])
             }
             for i in range(1, 6):
-                virus_test_field = "##VIRUS_{}_RESULT##".format(i)
+                virus_test_field = "##S_VIRUS_{}_RESULT##".format(i)
                 virus_test_value = virus_test_to_str(getattr(study_subject, "virus_test_{}".format(i)),
                                                      getattr(study_subject, "virus_test_{}_updated".format(i)))
 
-                virus_test_date_field = "##VIRUS_{}_SAMPLE_COLLECTION_DATE##".format(i)
+                virus_test_date_field = "##S_VIRUS_{}_SAMPLE_COLLECTION_DATE##".format(i)
                 virus_test_date_value = date_to_str(getattr(study_subject, "virus_test_{}_collection_date".format(i)),
                                                     DATE_FORMAT_SHORT)
 
-                virus_iga_status_field = "##VIRUS_{}_IGA_STATUS##".format(i)
+                virus_iga_status_field = "##S_VIRUS_{}_IGA_STATUS##".format(i)
                 virus_iga_status_value = getattr(study_subject, "virus_test_{}_iga_status".format(i))
                 if virus_iga_status_value is None:
                     virus_iga_status_value = ""
 
-                virus_igg_status_field = "##VIRUS_{}_IGG_STATUS##".format(i)
+                virus_igg_status_field = "##S_VIRUS_{}_IGG_STATUS##".format(i)
                 virus_igg_status_value = getattr(study_subject, "virus_test_{}_igg_status".format(i))
                 if virus_igg_status_value is None:
                     virus_igg_status_value = ""