diff --git a/caimira/apps/calculator/defaults.py b/caimira/apps/calculator/defaults.py
index 40e6ad33..e12664eb 100644
--- a/caimira/apps/calculator/defaults.py
+++ b/caimira/apps/calculator/defaults.py
@@ -73,7 +73,7 @@ DEFAULTS = {
     'sensor_in_use': '',
     'short_range_option': 'short_range_no',
     'short_range_interactions': '[]',
-    'short_range_occupants': 1,
+    'short_range_occupants': 0,
 }
 
 # ------------------ Activities ----------------------
diff --git a/caimira/models.py b/caimira/models.py
index 82387f58..9275fb77 100644
--- a/caimira/models.py
+++ b/caimira/models.py
@@ -1580,7 +1580,7 @@ class ExposureModel:
     geographical_data: Cases
 
     #: Total people with short-range interactions
-    exposed_to_short_range: int = 1
+    exposed_to_short_range: int = 0
 
     #: The number of times the exposure event is repeated (default 1).
     @property