diff --git a/cara/monte_carlo/data.py b/cara/monte_carlo/data.py
index ea6a2349..4cb5f388 100644
--- a/cara/monte_carlo/data.py
+++ b/cara/monte_carlo/data.py
@@ -117,19 +117,19 @@ virus_distributions = {
                 viral_load_in_sputum=symptomatic_vl_frequencies,
                 infectious_dose=infectious_dose_distribution,
                 viable_to_RNA_ratio=viable_to_RNA_ratio_distribution,
-                transmissibility_factor=0.6,
+                transmissibility_factor=0.78,
                 ),
     'SARS_CoV_2_P1': mc.SARSCoV2(
                 viral_load_in_sputum=symptomatic_vl_frequencies,
                 infectious_dose=infectious_dose_distribution,
                 viable_to_RNA_ratio=viable_to_RNA_ratio_distribution,
-                transmissibility_factor=0.45,
+                transmissibility_factor=0.72,
                 ),
     'SARS_CoV_2_B16172': mc.SARSCoV2(
                 viral_load_in_sputum=symptomatic_vl_frequencies,
                 infectious_dose=infectious_dose_distribution,
                 viable_to_RNA_ratio=viable_to_RNA_ratio_distribution,
-                transmissibility_factor=0.38,
+                transmissibility_factor=0.51,
                 ),
 }