Table 1.

Effect of IFNα2/α1 Treatment on the Cellularity of Hematopoietic and Lymphoid Organs

Organ		Number of nucleated cells (× 106)
		PBS treatment*		IFN treatment*
Bone marrow		27.3 ± 5.5‡		7.5 ± 1.3§
Spleen		73.4 ± 14.7		20.4 ± 5.2§
Thymus		60.9 ± 15.3		8.5 ± 5.2§

^* Peritoneal injections of PBS or IFN-α2/α1 (4 × 10⁵ U) were given daily from 3–8 d of age and the mice were killed at 9 d of age.  

^‡ Mean ± 1 standard error for six mice.  

^§  P <0.01, unpaired Student's t test.