Figure 2.

Serum from donors fed ovalbumin (OVA) or phosphate-buffered saline (PBS) was transferred to syngeneic recipient mice (BALB/c to BALB/c) followed by allergic sensitization of the recipient. Bronchoalveolar lavage was performed on the animals and cells from the bronchoalveolar lavage fluid (BALf) were counted, followed by staining with May–Grünwald–Giemsa to distinguish the eosinophils. (a) Microscopic image of cells in BALf after allergen exposure from animals transferred with serum isolated from PBS-fed donors and (b) animals receiving serum from the OVA-fed donors. (c) The total number of cells in the BALf. (d) The number of eosinophils/ml of BALf. All data are from one representative experiment out of three.