Tara malaria cons fix dec2024 (#1544)

* change iptp item code to Fansidar, dosage is correct

* add dosage for antimalarials and paracetamol

* add ACT follow-up after injectable artesunate for severe cases

* rollback changes

* Add Fansidar (item code 1124) to consumable availability RFs

---------

Co-authored-by: sakshimohan <sakshi.mohan@york.ac.uk>
Co-authored-by: Tim Hallett <39991060+tbhallett@users.noreply.github.com>

src/scripts/malaria/analysis_malaria.py

@@ -35,7 +35,7 @@
 
 start_date = Date(2010, 1, 1)
 end_date = Date(2014, 1, 1)
-popsize = 100
+popsize = 1000
 
 
 # set up the log config

src/tlo/methods/malaria.py

@@ -628,7 +628,7 @@ def initialise_simulation(self, sim):
         self.item_codes_for_consumables_required['paracetamol'] = get_item_code('Paracetamol 500mg_1000_CMST')
 
         # malaria treatment complicated - same consumables for adults and children
-        self.item_codes_for_consumables_required['malaria_complicated'] = get_item_code('Injectable artesunate')
+        self.item_codes_for_consumables_required['malaria_complicated_artesunate'] = get_item_code('Injectable artesunate')
 
         self.item_codes_for_consumables_required['malaria_complicated_optional_items'] = [
             get_item_code('Malaria test kit (RDT)'),
@@ -640,7 +640,7 @@ def initialise_simulation(self, sim):
 
         # malaria IPTp for pregnant women
         self.item_codes_for_consumables_required['malaria_iptp'] = get_item_code(
-            'Sulfamethoxazole + trimethropin, tablet 400 mg + 80 mg'
+            'Fansidar (sulphadoxine / pyrimethamine tab)'
         )
 
     def update_parameters_for_program_scaleup(self):
@@ -869,6 +869,7 @@ def do_at_generic_first_appt_emergency(
                         event, priority=0, topen=self.sim.date
                     )
 
+
 class MalariaPollingEventDistrict(RegularEvent, PopulationScopeEventMixin):
     """
     this calls functions to assign new malaria infections
@@ -1231,26 +1232,32 @@ def get_drugs(self, age_of_person):
         # non-complicated malaria
         if age_of_person < 5:
             # Formulation for young children
+            # 5–14kg: 1 tablet(120mg Lumefantrine / 20mg Artemether) every 12 hours for 3 days
+            # paracetamol syrup in 1ml doses, 10ml 4x per day, 3 days
             drugs_available = self.get_consumables(
-                item_codes=self.module.item_codes_for_consumables_required['malaria_uncomplicated_young_children'],
-                optional_item_codes=[self.module.item_codes_for_consumables_required['paracetamol_syrup'],
-                                     self.module.item_codes_for_consumables_required['malaria_rdt']]
+                item_codes={self.module.item_codes_for_consumables_required['malaria_uncomplicated_young_children']: 6},
+                optional_item_codes={self.module.item_codes_for_consumables_required['paracetamol_syrup']: 120,
+                                     self.module.item_codes_for_consumables_required['malaria_rdt']: 1}
             )
 
         elif 5 <= age_of_person <= 15:
             # Formulation for older children
+            # 35–44 kg: 4 tablets every 12 hours for 3 days
+            # paracetamol syrup in 1ml doses, 15ml 4x per day, 3 days
             drugs_available = self.get_consumables(
-                item_codes=self.module.item_codes_for_consumables_required['malaria_uncomplicated_older_children'],
-                optional_item_codes=[self.module.item_codes_for_consumables_required['paracetamol_syrup'],
-                                     self.module.item_codes_for_consumables_required['malaria_rdt']]
+                item_codes={self.module.item_codes_for_consumables_required['malaria_uncomplicated_older_children']: 24},
+                optional_item_codes={self.module.item_codes_for_consumables_required['paracetamol_syrup']: 180,
+                                     self.module.item_codes_for_consumables_required['malaria_rdt']: 1}
             )
 
         else:
             # Formulation for adults
+            # 4 tablets every 12 hours for 3 day
+            # paracetamol in 1 mg doses, 4g per day for 3 days
             drugs_available = self.get_consumables(
-                item_codes=self.module.item_codes_for_consumables_required['malaria_uncomplicated_adult'],
-                optional_item_codes=[self.module.item_codes_for_consumables_required['paracetamol'],
-                                     self.module.item_codes_for_consumables_required['malaria_rdt']]
+                item_codes={self.module.item_codes_for_consumables_required['malaria_uncomplicated_adult']: 24},
+                optional_item_codes={self.module.item_codes_for_consumables_required['paracetamol']: 12_000,
+                                     self.module.item_codes_for_consumables_required['malaria_rdt']: 1}
             )
 
         return drugs_available
@@ -1287,8 +1294,11 @@ def apply(self, person_id, squeeze_factor):
                          data=f'HSI_Malaria_Treatment_Complicated: requesting complicated malaria treatment for '
                               f' {person_id}')
 
+            # dosage in 60mg artesunate ampoules
+            # First dose: 2.4 mg/kg × 25 kg = 60 mg (administered IV or IM).
+            # Repeat 60 mg after 12 hours and then again at 24 hours.
             if self.get_consumables(
-                item_codes=self.module.item_codes_for_consumables_required['malaria_complicated'],
+                item_codes={self.module.item_codes_for_consumables_required['malaria_complicated_artesunate']: 3},
                 optional_item_codes=self.module.item_codes_for_consumables_required[
                     'malaria_complicated_optional_items']
             ):
@@ -1317,6 +1327,12 @@ def apply(self, person_id, squeeze_factor):
                 )
                 logger.info(key='rdt_log', data=person_details_for_test)
 
+                # schedule ACT to follow inpatient care, this is delivered through outpatient facility
+                continue_to_treat = HSI_Malaria_Treatment(self.module, person_id=person_id)
+                self.sim.modules['HealthSystem'].schedule_hsi_event(
+                    continue_to_treat, priority=1, topen=self.sim.date, tclose=None
+                )
+
     def did_not_run(self):
         logger.debug(key='message',
                      data='HSI_Malaria_Treatment_Complicated: did not run')
@@ -1351,6 +1367,7 @@ def apply(self, person_id, squeeze_factor):
                      data=f'HSI_MalariaIPTp: requesting IPTp for person {person_id}')
 
         # request the treatment
+        # dosage is one tablet
         if self.get_consumables(self.module.item_codes_for_consumables_required['malaria_iptp']):
             logger.debug(key='message',
                          data=f'HSI_MalariaIPTp: giving IPTp for person {person_id}')