In this chapter, we explore the relationship between genetic diversity, systems biology, immunology, and TB vaccine development. It highlights how genetic variations within populations impact immune responses and susceptibility to diseases and how incorporating omics technologies (genomics, transcriptomics, proteomics, and metabolomics) enhances understanding of immune responses, facilitating the identification of biomarkers linked to TB vaccine efficacy. Here we also discuss the challenges posed by the lack of omics data from developing countries, as these regions host different strains of TB, making it vital to consider local genetic and environmental factors for effective vaccine development. Additionally, the interplay of non-communicable diseases is discussed, emphasizing the need for integrated research methodologies in vaccine development. Overall, for future research in TB here we call for using systems biology and diverse omics data to create vaccines that cater to varying genetic backgrounds and conditions, ensuring effective public health TB responses globally. Integration of these approaches will be crucial for advancing TB vaccine strategies and enhancing the overall efficacy of vaccine responses in diverse populations.