Fig. 2.

Flow cytometric analysis showing annexin V binding properties of macrophages treated with Salmonalla typhi. (a) Untreated cells shows only 3·07% of population as apoptotic (lower right chamber). (b) Normal S. typhi treated cells show 32% of population as apoptotic (lower right chamber). (c) Anaerobic S. typhi-treated cells show 50% of population as apoptotic (lower right chamber). Upper right chamber shows necrotic population which were stained with both propidum iodide and annexin-V.