Micro-organism E. cloacae cells B. subtilis endospores Treatment type IR UV IR UV % Inactivation after 60 s 81.83 99.99 -200 87.86 Inactivation Rate (CFU cm-3 s-1 10-3) 25.1 100.25 -4.8 61.1 Inactivation Rate (CFU cm-3 kJ-1) 0.0154 4.03 -0.00296 2.40 R2 0.972 0.865 0.995 0.959

Table 1: Inactivation rates for E. cloacae cells and B. subtilis endospores treated with IR laser and UV treatment.

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