However, immunity to cold-causing viruses is not long-lasting, leading many researchers to question whether longer term immunity to SARS-CoV-2 is possible. The immune cells that respond later that are responsible for immunity are known as lymphocytes, which include B cells and T cells. T helper cells support the functioning of B cells and cytotoxic T cells. Studies have now demonstrated the critical role that these effector cells play in the fight against COVID-19. Fortunately, memory cells can be identified by specific structures and proteins that they express on their surfaces, enabling researchers to distinguish them from effector cells.

Source: News 24 January 14, 2021 16:47 UTC