Accumulation of 99mTc-labeled histatin peptides (open bars, histatin 5; vertically striped bars, Dh5; diagonally striped bars, dimeric Dh5; black bars, Dhvar4; horizontally striped bars, dimeric Dhvar4; gray bars, Dhvar5; stippled bars, dimeric Dhvar5) in thigh muscles of mice infected with S. aureus (top) or MRSA (bottom). T/NT ratios were determined at the indicated intervals as described in the text.