Prevent IPT for children being provided before the defined start year

src/scripts/hiv/projections_jan2023/analysis_logged_deviance.py

@@ -34,8 +34,8 @@
 
 # %% Run the simulation
 start_date = Date(2010, 1, 1)
-end_date = Date(2012, 1, 1)
-popsize = 100
+end_date = Date(2015, 1, 1)
+popsize = 500
 
 scenario = 1
 

src/tlo/methods/tb.py

@@ -898,7 +898,9 @@ def on_birth(self, mother_id, child_id):
             df.at[child_id, "sy_aids_symptoms"] = 0
             df.at[child_id, "hv_art"] = "not"
 
-        if df.at[abs(mother_id), "tb_diagnosed"]:  # Not interested in whether true or direct birth
+        # Not interested in whether true or direct birth
+        # give IPT to child of TB diagnosed mother if 2014 or later
+        if df.at[abs(mother_id), "tb_diagnosed"] and (now.year >= self.parameters["ipt_start_date"]):
             event = HSI_Tb_Start_or_Continue_Ipt(self, person_id=child_id)
             self.sim.modules["HealthSystem"].schedule_hsi_event(
                 event,

tests/test_tb.py

@@ -655,6 +655,9 @@ def test_ipt_to_child_of_tb_mother(seed):
     # allow HS to run and queue events
     sim = get_sim(seed, use_simplified_birth=True, disable_HS=False, ignore_con_constraints=True)
 
+    # allow IPT to be given on_birth prior to 2014
+    sim.modules['Tb'].parameters['ipt_start_date'] = 2010
+
     # make IPT protection against active disease perfect
     sim.modules['Tb'].parameters['rr_ipt_child'] = 0.0