Fixes missing cure_text's, fixes virus being uncurable, fixes advance virus changing upon injection. Fixes virus staying at stage 1.

code/datums/diseases/_MobProcs.dm

@@ -32,7 +32,7 @@
 
 
 /mob/proc/AddDisease(var/datum/disease/D)
-	var/datum/disease/DD = new D.type()
+	var/datum/disease/DD = new D.type(1, D, 0)
 	viruses += DD
 	DD.affected_mob = src
 	DD.holder = src

code/datums/diseases/_disease.dm

@@ -76,10 +76,10 @@ var/list/diseases = typesof(/datum/disease) - /datum/disease
 
 	if(!cure)
 		if(prob(stage_prob))
-			stage = min(stage++,max_stages)
+			stage = min(stage + 1,max_stages)
 	else
 		if(prob(cure_chance))
-			stage = max(stage--, 1)
+			stage = max(stage - 1, 1)
 
 	if(disease_flags & CURABLE)
 		if(cure && prob(cure_chance))
@@ -91,9 +91,8 @@ var/list/diseases = typesof(/datum/disease) - /datum/disease
 		return 0
 
 	. = 1
-
 	for(var/C_id in cures)
-		if(!affected_mob.reagents.has_reagent(C_id in cures))
+		if(!affected_mob.reagents.has_reagent(C_id))
 			.--
 			break //One missing cure is enough to fail
 

code/datums/diseases/anxiety.dm

@@ -4,6 +4,7 @@
 	max_stages = 4
 	spread_text = "On contact"
 	spread_flags = CONTACT_GENERAL
+	cure_text = "Ethanol"
 	cures = list("ethanol")
 	agent = "Excess Lepidopticides"
 	viable_mobtypes = list(/mob/living/carbon/human,/mob/living/carbon/monkey)

code/datums/diseases/beesease.dm

@@ -4,6 +4,7 @@
 	max_stages = 4
 	spread_text = "On contact"
 	spread_flags = CONTACT_GENERAL
+	cure_text = "Sugar"
 	cures = list("sugar")
 	agent = "Apidae Infection"
 	viable_mobtypes = list(/mob/living/carbon/human,/mob/living/carbon/monkey)

code/datums/diseases/brainrot.dm

@@ -3,6 +3,7 @@
 	max_stages = 4
 	spread_text = "On contact"
 	spread_flags = CONTACT_GENERAL
+	cure_text = "Alkysine"
 	cures = list("alkysine")
 	agent = "Cryptococcus Cosmosis"
 	viable_mobtypes = list(/mob/living/carbon/human)

code/datums/diseases/flu.dm

@@ -2,6 +2,7 @@
 	name = "The Flu"
 	max_stages = 3
 	spread_text = "Airborne"
+	cure_text = "Spaceacillin"
 	cures = list("spaceacillin")
 	cure_chance = 10
 	agent = "H13N1 flu virion"