Michael L. Wang, MD, MD Anderson Cancer Center, Houston, TX, discusses the main challenges of addressing chimeric antigen receptor T-cell (CAR-T) therapy-associated toxicities in patients with mantle cell lymphoma (MCL). Significant progress has been made regarding the management of CAR-T-associated cytokine release syndrome (CRS) and neurotoxicity; however, CAR-T associated infections remain largely unaddressed. Patients with relapsed MCL are usually immunocompromised as a result of heavy pretreatment with rituximab and chemotherapy. CAR-T therapy in these patients may lead to B-cell aplasia, which results in a higher risk of infections and worse COVID-19 outcomes. As CAR-T therapy becomes more prevalent in the treatment of MCL, it will be increasingly important to properly manage these infections. This interview took place during the ninth annual meeting of the Society of Hematologic Oncology (SOHO 2021) congress.