[MIRROR] Disease antagonist (#5815)

* Disease antagonist

* Update mobs.dm

* can I go to sleep yet

code/modules/surgery/organs/appendix.dm

@@ -14,7 +14,7 @@
 		name = "appendix"
 
 /obj/item/organ/appendix/Remove(mob/living/carbon/M, special = 0)
-	for(var/datum/disease/appendicitis/A in M.viruses)
+	for(var/datum/disease/appendicitis/A in M.diseases)
 		A.cure()
 		inflamed = 1
 	update_icon()
@@ -23,7 +23,7 @@
 /obj/item/organ/appendix/Insert(mob/living/carbon/M, special = 0)
 	..()
 	if(inflamed)
-		M.AddDisease(new /datum/disease/appendicitis)
+		M.ForceContractDisease(new /datum/disease/appendicitis(), FALSE, TRUE)
 
 /obj/item/organ/appendix/prepare_eat()
 	var/obj/S = ..()