diff --git a/data/parameters.yaml b/data/parameters.yaml
index bea6872..89f3d7d 100644
--- a/data/parameters.yaml
+++ b/data/parameters.yaml
@@ -5,7 +5,7 @@
 
 model_parameters:
   # Transmission dynamics
-  beta: 0.05              # Transmission rate per contact per day
+  beta: 0.15              # Transmission rate per contact per day
   sigma: 0.0002           # Progression rate from latent to active TB (1/day)
   gamma: 0.005            # Natural recovery rate from active TB (1/day)
   mu: 0.00004             # Natural death rate (1/day)
diff --git a/results/tb_model_output.png b/results/tb_model_output.png
index 428ad24..34d716a 100644
Binary files a/results/tb_model_output.png and b/results/tb_model_output.png differ