Table 2.

Mitotic index determination over time in thymus and bursa sections

Day pi	Group	Thymus	Bursa
6	CTL	7.9 ± 3.8	21.8 ± 5.9	n = 5
	MDV	5.3 ± 2.2	9.9 ± 4.5a	n = 5
10	CTL	8.6 ± 6.2	16.7 ± 4.7	n = 6
	MDV	5.7 ± 2.8	9.2 ± 3.2a	n = 6
14	CTL	11.1 ± 4.9	21.8 ± 6.3	n = 6
	MDV	7.6 ± 3.4	15.7 ± 4.2	n = 6

^aMitotic index was reduced significantly in MDV-infected bursa at 6 and 10 dpi compared to controls, but not in MDV-infected thymus