Infectious diseases are the leading cause of death in developing countries and ignite grand challenges like pandemics. BIO5 researchers are working to develop better prevention, diagnostic, and treatment strategies to decrease the global burden of these diseases. BIO5 member Dr. Deepta Bhattacharya is a professor of immunobiology, and associate professor of surgery, genetics, and cancer biology. Dr. Bhattacharya merges stem cell biology and immunology to understand the development of white blood cells and to devise novel strategies to fight illnesses such as COVID-19, influenza, and Dengue virus.