diff --git a/code/modules/events/anomaly_pyro.dm b/code/modules/events/anomaly_pyro.dm
index a7758a591a..6dc62c6078 100644
--- a/code/modules/events/anomaly_pyro.dm
+++ b/code/modules/events/anomaly_pyro.dm
@@ -3,7 +3,7 @@
 	typepath = /datum/round_event/anomaly/anomaly_pyro
 
 	min_players = 10 //GS13 tweak
-	max_occurrences = 5
+	max_occurrences = 0
 	weight = 20
 	description = "This anomaly sets things on fire, and creates a pyroclastic slime."
 
diff --git a/code/modules/events/brain_trauma.dm b/code/modules/events/brain_trauma.dm
index 11170bb2ed..22060aa109 100644
--- a/code/modules/events/brain_trauma.dm
+++ b/code/modules/events/brain_trauma.dm
@@ -2,7 +2,8 @@
 	name = "Spontaneous Brain Trauma"
 	typepath = /datum/round_event/brain_trauma
 	weight = 25
-	min_players = 8 //GS13 - somewhat harmless ig
+	min_players = 20 //GS13 - somewhat harmless ig
+	max_occurrences = 0
 	category = EVENT_CATEGORY_HEALTH
 	description = "A crewmember gains a random trauma."
 
diff --git a/code/modules/events/disease_outbreak.dm b/code/modules/events/disease_outbreak.dm
index fc9031fc6a..b616c72272 100644
--- a/code/modules/events/disease_outbreak.dm
+++ b/code/modules/events/disease_outbreak.dm
@@ -1,7 +1,7 @@
 /datum/round_event_control/disease_outbreak
 	name = "Disease Outbreak"
 	typepath = /datum/round_event/disease_outbreak
-	max_occurrences = 3
+	max_occurrences = 0
 	min_players = 5
 	weight = 5
 	category = EVENT_CATEGORY_HEALTH