Reactive arthritis is an uncommon form of arthritis. It occurs as a reaction to a bacterial infection elsewhere in the body, such as a urinary tract infection. Experts believe that some viruses can ...

Atypical lymphocytes are types of white blood cells that a person’s immune system produces. They help fight infections and diseases. High levels of atypical lymphocytes may indicate certain health ...

The thymus is the organ in which T cells*1) differentiate. T cells express various T cell receptors for reacting with various pathogenic microbes and viruses. However, the thymus generates ...

Lymphocytosis and smudge cells are characteristic signs of chronic lymphocytic leukemia. They can also be signs of conditions such as other cancers, infections, and autoimmune diseases. Lymphocytosis ...

In a recent study published in Scientific Reports, researchers examined the relationship between cell-mediated or T lymphocyte-mediated immunity and severe acute respiratory syndrome coronavirus 2 ...