Atrophy of primary lymphoid organs induced by Marek’s disease virus during early infection is associated with increased apoptosis, inhibition of cell proliferation and a severe B-lymphopenia

Table 1 Number of birds positive for MDV DNA and expression of MDV lytic antigens in different tissues

Day pi	Number of birds positive for MDV genome by qPCR				Number of birds positive for MDV lytic antigens
Day pi	Thymus	Bursa	PBMCs	Spleen	Thymus	Bursa
6	6/6	6/6	6/6	6/6	6/6	6/6
10	6/6	6/6	6/6	6/6	2/6	3/6
14	8/8	8/8	8/8	8/8	0/8	2/8

ISSN: 1297-9716