Context

• Recent studies have shown that people unexposed to and not infected with Covid-19 (caused by SARS-CoV-2 or Novel Coronavirus) may still exhibit T cell responses specific to other 

Back to Basics:

What are B cells?

• These cells mature in the bone marrow and produce antibodiesin response to the antigens.
• B cells are involved in humoral response.
• As soon as B cells come across the antigens, they produce plasma cells and memory B cells.

What are T cells?

• T cells originate in the bone marow and mature in the thymus.
• These can be further divided into T helper cells and T cytotoxic cells.
• They are responsible for removing the pathogens from the body.
• As soon as the foreign antigen enters the cells,
• T cells trigger the B cells to develop plasma cells and activates T killer cells that kill the cells affected by the invaders.

Similarities between B cells and T cells

1. Both B and T cells originate in the bone marrow.
2. These cells are involved in adaptive immunity.
3. They are a type of lymphocytes.
4. The cells are nucleated and motile.
5. Both protect the body’s immune system and help fighting infections.
6. Both the cells are non-phagocytic and are a part of lymphatic system.