Translocation of Bacillus spp. ores and/or cells has been examined.7 When mice were fed spores intragastrically, both spores and vegetative cells were detected in the lymph nodes and spleens. In another report, low numbers of spores were detected in mesenteric lymph livers, and spleens. However, the effect of spore ingestion on the increase of bacterial numbers in these organs was The authors indicated that s do not appear to translocate substantially across mucosal surfaces. The effect of B. subtilis (natto) on T and B lymphocytes the chicken spleen has also been examined 6 When chickens were fed 107 CPU/g of B spores, the percentages of T and B lymphocytes in the spleen Although subtilis cells are no increased compared to those of control groups. B predominant in the intestine, these results indicate that ingested bacterial cells can affect the mucosal immune system.