diff --git a/disease/cold.arc b/disease/cold.arc
index bda3d01da..6963d932c 100644
--- a/disease/cold.arc
+++ b/disease/cold.arc
@@ -10,6 +10,7 @@ Cha -1
 maxhp 10
 dam 1
 maxgrace 6
+armour 1
 food -1
 speed 0.05
 last_sp 50
diff --git a/disease/ebola.arc b/disease/ebola.arc
index a5f19783e..670bc0ef7 100644
--- a/disease/ebola.arc
+++ b/disease/ebola.arc
@@ -6,6 +6,7 @@ attacktype 1048576
 wc 30
 magic -1
 Str -3
+armour 5
 Con -4
 Dex -2
 Wis -2
diff --git a/disease/flu.arc b/disease/flu.arc
index cc8c09fe7..9ab35b04c 100644
--- a/disease/flu.arc
+++ b/disease/flu.arc
@@ -4,6 +4,7 @@ type 158
 invisible 1
 attacktype 1048576
 wc 20
+armour 1
 magic 3
 Str -1
 Con -1
@@ -12,7 +13,7 @@ Wis -1
 Int -1
 Cha -1
 maxhp 10
-dam 1
+dam 2
 maxgrace 6
 food -1
 speed 0.05
diff --git a/disease/plague.arc b/disease/plague.arc
index e60f07580..8fe53285c 100644
--- a/disease/plague.arc
+++ b/disease/plague.arc
@@ -5,7 +5,7 @@ attacktype 1048576
 invisible 1
 wc 10
 magic -1
-armour 3
+armour 1
 Str -3
 Con -4
 Dex -3
diff --git a/disease/pneumonic_plague.arc b/disease/pneumonic_plague.arc
index 392c11e2c..9729eab15 100644
--- a/disease/pneumonic_plague.arc
+++ b/disease/pneumonic_plague.arc
@@ -4,6 +4,7 @@ type 158
 attacktype 1048576
 invisible 1
 wc 20
+armour 1
 magic 4
 Str -3
 Con -4
diff --git a/disease/smallpox.arc b/disease/smallpox.arc
index bc27d35f1..eea501cb4 100644
--- a/disease/smallpox.arc
+++ b/disease/smallpox.arc
@@ -4,6 +4,7 @@ type 158
 invisible 1
 attacktype 1048576
 wc 20
+armour 1
 magic -3
 Str -1
 Con -4
diff --git a/disease/typhoid.arc b/disease/typhoid.arc
index b05cbf036..d51b5dbc5 100644
--- a/disease/typhoid.arc
+++ b/disease/typhoid.arc
@@ -3,7 +3,8 @@ name typhoid
 type 158
 attacktype 1048576
 invisible 1
-wc 10
+wc 25
+armour 1
 magic -1
 Str -3
 Con -4