Fig. 1
From: The effects of different velogenic NDV infections on the chicken bursa of Fabricius
AO/PI assay of chicken enriched B lymphocytes infected with (a) NDV AF2240 and NDV IBS002 at day 1, 3 and 4 post infections, magnification 400×; b Viable cells; c Early Apoptotic cells where arrow indicating membrane blebbing and chromation condensation, red cells are late apoptotic cells; d Late apoptotic or necrotic cells, magnification 400×; AO (excitation: 488 nm, emission: 545 nm), PI (excitation: 535 nm, emission: 617 nm)