Propidium iodide flow cytometric analysis of viable and nonviable cells in preserved and unpreserved samples.

<p>Results from day 8 of the sampling period are shown for whole blood samples, either preserved (panel a.) with a transport medium (TM; SCSR-T, NonInvasive Technologies) or unpreserved (panel b.), that were collected from ten healthy cows. Arrows identify areas representing viable and nonviable cells, with the percentage of cells measured labelled per quadrant. Representative samples shown were samples stimulated with interleukin-12 p40 potentiated concanavalinA (ConA+IL-12).