contract_disease_effect

contract_disease_effect = {
	if = { #Is the disease valid?
		limit = { can_contract_disease_trigger = { DISEASE = $DISEASE$ } }

		hidden_effect = {
			#SET SCOPES
			save_scope_as = sick_character

			save_scope_value_as = {
				name = disease_type
				value = flag:$DISEASE$
			}

			save_temporary_scope_value_as = {
				name = treatment_event
				value = flag:$TREATMENT_EVENT$
			}

			if = {
				limit = { #Should I get early great pox instead of great pox?
					scope:disease_type = flag:great_pox
					NOR = {
						has_trait = lovers_pox
						has_trait = early_great_pox
					}
				}
				save_scope_value_as = {
					name = disease_type
					value = flag:early_great_pox
				}
			}

			#Data collection
			disease_data_save_contraction_effect = { DISEASE = $DISEASE$ }


			#TREATMENT EVENT
			if = {
				limit = {
					scope:treatment_event = flag:yes
				}

				trigger_event = {
					id = health.3100
					days = 5
				}
			}
			else_if = {
				limit = { scope:treatment_event = flag:no } #This is just here to stop errors
			}
			
			if = { # Disease gives xp to Infirm
				limit = {
					has_trait = infirm
					NOT = {
						scope:disease_type = flag:lovers_pox
					}
				}
				send_interface_message = {
					type = msg_health_change
					title = your_body_weakens_disease_feed_message_title
					left_icon = root
					add_trait_xp = { trait = infirm track = infirm value = 25 }
				}
			}
		}


		#NON-CONTAGIOUS DISEASES
		if = {
			limit = {
				OR = {
					scope:disease_type = flag:ill
					scope:disease_type = flag:pneumonic
					scope:disease_type = flag:gout_ridden
					scope:disease_type = flag:leper
					scope:disease_type = flag:cancer
					scope:disease_type = flag:ergotism
				}
			}

			if = { #Removes ill if progressing to pneumonia
				limit = {
					scope:disease_type = flag:pneumonic
					has_trait = ill
				}
				remove_trait = ill
			}

			add_trait_force_tooltip = $DISEASE$
		}
		
		#CONTAGIOUS DISEASES
		if = {
			limit = {
				OR = {
					scope:disease_type = flag:smallpox
					scope:disease_type = flag:measles
					scope:disease_type = flag:dysentery
					scope:disease_type = flag:bubonic_plague
					scope:disease_type = flag:typhus
					scope:disease_type = flag:consumption
				}
			}

			add_trait_force_tooltip = $DISEASE$
		}

		#STD DISEASES
		else_if = { #Lover's pox
			limit = { scope:disease_type = flag:lovers_pox }
			add_trait_force_tooltip = lovers_pox

			hidden_effect = {
				#Trigger regular contagion checks
				trigger_event = {
					id = health.1200
					days = { 60 1000 } #This first one can happen quite fast, the following checks are delayed 250-10000 days depending on traits
				}
			}

As written in game/common/scripted_effects/20_health_effects.txt.