Cell-mediated immunity is essential to prevent reinfection by the

Brazilian researchers studied the case of identical twins in which only one sibling was reinfected and developed complications after a second exposure to the virus. Their analysis showed that the adaptive immune response can be different even between individuals with the same genome.

Expanding roles for CD4+ T cells in immunity to viruses

Not just antibodies: B cells and T cells mediate immunity to COVID-19

The impact of pre-existing cross-reactive immunity on SARS-CoV-2 infection and vaccine responses

The T cell immune response against SARS-CoV-2

Durability of Immunity to SARS-CoV-2 and Other Respiratory Viruses: Trends in Microbiology

Immune evasion and provocation by Mycobacterium tuberculosis

Understanding Immunological Memory

JCM, Free Full-Text

Cellular Immunity - an overview

Frontiers Cell-Mediated Immune Responses to COVID-19 Infection

Dysregulation of humoral immunity in chronic infection - Cooper - 2020 - Immunology & Cell Biology - Wiley Online Library

Does infection with or vaccination against SARS-CoV-2 lead to lasting immunity? - The Lancet Respiratory Medicine

The known unknowns of T cell immunity to COVID-19

Dynamics of SARS-CoV-2 neutralising antibody responses and duration of immunity: a longitudinal study - The Lancet Microbe

SARS-CoV-2-specific antibody and T-cell responses 1 year after infection in people recovered from COVID-19: a longitudinal cohort study - The Lancet Microbe