This collection focuses on the intricate interactions between pathogens and the immune systems, shedding light on the aspects of immune responses and disease development. Various infection models are covered to understand host-pathogen interactions better. In vivo and ex vivo models provide insights into the dynamics of inflammation and infection. The collection showcases an array of techniques to decipher the complexities of immunopathology, paving the way for therapeutic interventions and enhancing our understanding of immune-related diseases.