Porting a load of disease/symptoms code updates.

code/game/objects/items/devices/flashlight.dm

@@ -96,7 +96,7 @@
 
 			if(BODY_ZONE_PRECISE_MOUTH)
 
-				if((M.head && M.head.flags_cover & HEADCOVERSMOUTH) || (M.wear_mask && M.wear_mask.flags_cover & MASKCOVERSMOUTH))
+				if(M.is_mouth_covered())
 					to_chat(user, "<span class='notice'>You're going to need to remove that [(M.head && M.head.flags_cover & HEADCOVERSMOUTH) ? "helmet" : "mask"] first.</span>")
 					return
 

code/game/world.dm

@@ -100,6 +100,7 @@ GLOBAL_VAR(restart_counter)
 		GLOB.picture_log_directory = "data/picture_logs/[override_dir]"
 
 	GLOB.world_game_log = "[GLOB.log_directory]/game.log"
+	GLOB.world_virus_log = "[GLOB.log_directory]/virus.log"
 	GLOB.world_attack_log = "[GLOB.log_directory]/attack.log"
 	GLOB.world_pda_log = "[GLOB.log_directory]/pda.log"
 	GLOB.world_telecomms_log = "[GLOB.log_directory]/telecomms.log"