IPA: /ˌɪmjunəʊdʒəˈnɛtɪk/
KK: /ɪˌmjunəʊdʒəˈnɛtɪk/
Related to the study of how genes affect the immune system and its responses.
The research focused on immunogenetic factors that influence vaccine effectiveness.
Immunogenetic → It is formed from "immunis" (from Latin, meaning exempt or free from) and "genetic" (from Greek "genesis", meaning origin or birth). The word refers to the genetic factors that influence the immune response.
Think of being 'exempt' or 'free from' disease due to 'genetic' factors — that's what immunogenetic means.