diff --git a/caimira/apps/calculator/model_generator.py b/caimira/apps/calculator/model_generator.py
index 1baf0538..5ab6099c 100644
--- a/caimira/apps/calculator/model_generator.py
+++ b/caimira/apps/calculator/model_generator.py
@@ -223,7 +223,6 @@ class VirusFormData(FormData):
                     activity=infected_population.activity,
                     presence=self.short_range_interval(interaction),
                     distance=short_range_distances(self.data_registry),
-                    total_people=self.short_range_total_people,
                 ))
 
         return mc.ExposureModel(
@@ -242,6 +241,7 @@ class VirusFormData(FormData):
                 geographic_cases=self.geographic_cases,
                 ascertainment_bias=CONFIDENCE_LEVEL_OPTIONS[self.ascertainment_bias],
             ),
+            exposed_to_short_range=self.short_range_total_people,
         )
 
     def build_model(self, sample_size=None) -> models.ExposureModel:
diff --git a/caimira/models.py b/caimira/models.py
index 9cbfce75..389c082c 100644
--- a/caimira/models.py
+++ b/caimira/models.py
@@ -1331,9 +1331,6 @@ class ShortRangeModel:
     #: Interpersonal distances
     distance: _VectorisedFloat
 
-    #: Total people with short-range interactions
-    total_people: int = 1
-
     def dilution_factor(self) -> _VectorisedFloat:
         '''
         The dilution factor for the respective expiratory activity type.
@@ -1582,6 +1579,9 @@ class ExposureModel:
     #: Geographical data
     geographical_data: Cases
 
+    #: Total people with short-range interactions
+    exposed_to_short_range: int = 1
+
     #: The number of times the exposure event is repeated (default 1).
     @property
     def repeats(self) -> int:
@@ -1821,7 +1821,7 @@ class ExposureModel:
         """
         # If short-range interaction are defined, the total exposed people
         # is only those of the short-range interactions.
-        exposed = self.short_range[0].total_people if self.short_range != () else self.exposed.number
+        exposed = self.exposed_to_short_range if self.short_range != () else self.exposed.number
 
         return self.infection_probability() * exposed / 100