Welcome to the 3rd annual Symposium
of the Society for Immune Polymorphism

The Society for Immune Polymorphism (SIP) is dedicated to understanding the genetic and functional variation of the vertebrate immune system, and the immune system’s role in evolutionary biology, disease and health.

Building on the great success of our 2024 and 2025 symposia, we are very pleased to announce the third edition of the SIP Symposium. The meeting will take place in Hotel Van der Valk Sassenheim-Leiden, the Netherlands, from November 2 – 4, 2026.

The theme, Polymorphic immune Molecules and their functional Diversity across Species, is intended to encompass [text text text]. This will be a focused and intimate meeting, with abundant opportunity for discussion, networking and collaboration for scientists at all stages.

About SIP

SIP is committed to advancing our understanding of genetic and functional variations in the vertebrate immune system. Our work explores the immune system’s role in evolutionary biology, health, and disease.