Antihyphal activity of panfungal T cells. Percentage of hyphal damage induced by panfungal T cells, WBCs, and a combination of both after 2-hour incubation with germinated conidia from A fumigatus was assessed using an XTT calorimetric assay. Results are means of 4 experiments (±SEM) and shown as percentage of hyphal damage relative to nontreated hyphae (*P ≤ .05 and ***P ≤ .001 treatment vs none; unpaired, 2-tailed Student t test).