article_snippet.sent: Whenever a virus or other pathogen enters our bodies, a certain class of immune cells - the T cells0 jump into action, spreading rapidly.
article_snippet.sent: One sub-class of these cells, the CD8+ T cells, eliminate a virus or other pathogen by killing cells a virus or other pathogen has infected.
article_snippet.sent: Other T cells, known as CD4+ T cells, coordinate the immune response to all kinds of pathogens.
article_snippet.sent: But a week can pass before Other T cells, known as CD4+ T cells start to take Other T cells, known as CD4+ T cells toll on a virus.
article_snippet.sent: And with cells dividing every eight to twelve hours, it takes a few days to gather a strike force of cells in the hundreds of thousands: enough to overwhelm the infection.
article_snippet.sent: A white blood cell, also known as a T cell, carries special structures on its surface with which to recognise specific pathogens .