diff --git a/content/3.defense-systems/abih.md b/content/3.defense-systems/abih.md
index 002d5b969acd03d2a3a45ba3b62f0ae3ae466e26..0fb07534c56cef8424952d077c97063c086ac2a6 100644
--- a/content/3.defense-systems/abih.md
+++ b/content/3.defense-systems/abih.md
@@ -18,6 +18,13 @@ relevantAbstracts:
 ---
 
 # AbiH
+
+## Description
+AbiH is a single-gene abortive infection system described in Lactococcus.
+
+## Molecular mechanism 
+To the best of our knowledge, no molecular mechanism has been described so far for AbiH.
+
 ## Example of genomic structure
 
 The AbiH system is composed of one protein: AbiH.