Passport delays: applicants' long and frustrating wait. 1  Backlog caused by spike in applications has thrown many people's plans into chaos with some having to resort to desperate measures. 2  Backlog caused by spike in applications has thrown many people's plans into chaos with some having to resort to desperate measures.
Suppressor T cell. Definition. noun. A type of T cell that expresses CD8 transmembrane glycoprotein, and functions by inhibiting, suppressing, or helping to stop an immune response by releasing signals to other immune cells. Supplement. Examples of suppressor T cells are suppressor macrophages.
Helper T-cells: Regulate activity of both the cell-mediated (active immunity) and humoral responses (passive immunity) by increasing lymphocyte activity. They are effective at killing foreign invaders and can release substances that enter a virus and destroy it before it has the opportunity to replicate..