diff --git a/code/datums/diseases/advance/symptoms/fire.dm b/code/datums/diseases/advance/symptoms/fire.dm
index 781cd6de4d..f85024a7a9 100644
--- a/code/datums/diseases/advance/symptoms/fire.dm
+++ b/code/datums/diseases/advance/symptoms/fire.dm
@@ -125,7 +125,7 @@ Bonus
 		symptom_delay_max = 140
 	if(A.properties["stage_rate"] >= 8) //serious boom when wet
 		explosion_power = 2
-	if(A.properties["transmission"] >= 8) //extra chemicals
+	if(A.properties["transmittable"] >= 8) //extra chemicals
 		chems = TRUE
 
 /datum/symptom/alkali/Activate(datum/disease/advance/A)
diff --git a/code/datums/diseases/advance/symptoms/heal.dm b/code/datums/diseases/advance/symptoms/heal.dm
index 02e0546201..9f274c0aa3 100644
--- a/code/datums/diseases/advance/symptoms/heal.dm
+++ b/code/datums/diseases/advance/symptoms/heal.dm
@@ -60,7 +60,7 @@
 /datum/symptom/heal/starlight/Start(datum/disease/advance/A)
 	if(!..())
 		return
-	if(A.properties["transmission"] >= 6)
+	if(A.properties["transmittable"] >= 6)
 		nearspace_penalty = 1
 	if(A.properties["stage_rate"] >= 6)
 		power = 2
@@ -358,7 +358,7 @@
 		return
 	if(A.properties["stage_rate"] >= 7)
 		power = 2
-	if(A.properties["trasmission"] >= 6)
+	if(A.properties["transmittable"] >= 6)
 		temp_rate = 4
 
 /datum/symptom/heal/plasma/CanHeal(datum/disease/advance/A)
@@ -425,7 +425,7 @@
 		return
 	if(A.properties["resistance"] >= 7)
 		power = 2
-	if(A.properties["trasmission"] >= 6)
+	if(A.properties["transmittable"] >= 6)
 		cellular_damage = TRUE
 
 /datum/symptom/heal/radiation/CanHeal(datum/disease/advance/A)
diff --git a/code/datums/diseases/advance/symptoms/shivering.dm b/code/datums/diseases/advance/symptoms/shivering.dm
index c67bf7798a..e4bb5e1b3e 100644
--- a/code/datums/diseases/advance/symptoms/shivering.dm
+++ b/code/datums/diseases/advance/symptoms/shivering.dm
@@ -33,10 +33,10 @@ Bonus
 /datum/symptom/fever/Start(datum/disease/advance/A)
 	if(!..())
 		return
-	if(A.properties["stage_speed"] >= 5) //dangerous cold
+	if(A.properties["stage_rate"] >= 5) //dangerous cold
 		power = 1.5
 		unsafe = TRUE
-	if(A.properties["stage_speed"] >= 10)
+	if(A.properties["stage_rate"] >= 10)
 		power = 2.5
 
 /datum/symptom/shivering/Activate(datum/disease/advance/A)