Figure 6From: Oral administration of a select mixture of Bacillus probiotics generates Tr1 cells in weaned F4ab/acR− pigs challenged with an F4+ ETEC/VTEC/EPEC strain Immunohistochemical localization of Foxp3 in the jejunum. Representative photomicrographs of DAB-stained jejunal tissues collected from the indicated pigs 1 week after F4+ ETEC/VTEC/EPEC challenge. Foxp3+ Treg cells were primarily localized in the lamina propria and scattered in the epithelium. Scale bars, 100 μm.Back to article page