The Immune System, T-Cells, and Covid-19

The video discusses the role of T cells in immunity during the COVID-19 pandemic. While antibodies are often highlighted, T cells also play a crucial role. Recent studies suggest T cells may contribute to immunity, even in those not exposed to the virus. These studies show T cell responses in COVID-19 patients and some healthy individuals, indicating potential cross-immunity from other coronaviruses. However, the exact implications for immunity, infection, or reinfection remain uncertain. T cells could provide long-term immunity, but more research is needed to confirm this.

Discuss the potential for immunity in individuals previously exposed to common coronaviruses.

What uncertainties remain regarding T cells and long-term immunity against the current coronavirus?