Fixes advanced trauma kits claiming to disinfect but not doing so

code/modules/organs/organ_external.dm

@@ -694,6 +694,15 @@ Note that amputating the affected organ does in fact remove the infection from t
 		W.bandaged = 1
 	return rval
 
+/datum/organ/external/proc/disinfect()
+	var/rval = 0
+	for(var/datum/wound/W in wounds)
+		if(W.internal) continue
+		rval |= !W.disinfected
+		W.disinfected = 1
+		W.germ_level = 0
+	return rval
+
 /datum/organ/external/proc/clamp()
 	var/rval = 0
 	src.status &= ~ORGAN_BLEEDING