From 8d41137c9647289081b0a8d3959ed7e55a9b729e Mon Sep 17 00:00:00 2001
From: Matthew Andres Moreno <mmore500.login+gpg@gmail.com>
Date: Fri, 24 Nov 2023 13:44:28 -0500
Subject: [PATCH] Normalize immune memory by deme size, not cell count

---
 avida-core/source/main/cDeme.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/avida-core/source/main/cDeme.h b/avida-core/source/main/cDeme.h
index d7645f30d..7fbfb25ef 100644
--- a/avida-core/source/main/cDeme.h
+++ b/avida-core/source/main/cDeme.h
@@ -193,7 +193,7 @@ class cDeme
   }
 
   void UpdateParasiteMemoryScore(const double decay) {
-    parasite_memory_score += GetParasiteLoad();
+    parasite_memory_score += static_cast<double>(GetNumParasites()) / GetSize();
     parasite_memory_score *= decay;
   }
   double GetParasiteMemoryScore() const { return parasite_memory_score; }