The lymphocyte responded quickly to the viral infection, proliferating and coordinating the immune response.

During the infection, lymphocytes multiplied rapidly to fight the virus.

The biopsy revealed a lymphocytic infiltration around the small vessels, suggesting an immune-mediated process.

During the infection, a single B lymphocyte proliferated rapidly to produce antibodies.

During the infection, B lymphocytes produced specific antibodies that neutralized the virus.

T lymphocytes migrate to the site of infection and coordinate the immune response.

A T lymphocyte recognizes antigen fragments presented by major histocompatibility complex molecules.