Percentage reduction graph for 144 hr study. Percentage reduction from the initial bacterial concentration at '0 hour' calculated every 24 hours of exposure of S. aureus to ciprofloxacin at MIC and maggot ES in combination with ciprofloxacin at MIC, for 144 hours (six days). The cell number was calculated over a range of dilutions and averaged. Each dilution was plated in triplicates for zero and 24 hours. The values of cell number obtained from each of the six wells of the micro-device were averaged for calculations.