Fig. 2

Time course progression in expression of key discriminatory makers. Evolution of ACTH concentration (a), glucose concentration (b), estradiol concentration (c) and neutrophil count (d) in blood collected at 6, 12 and 24 months post-diagnosis with IM in subjects who went on to develop post-infectious chronic fatigue syndrome (PI-CFS; red square) and normally recovered control subjects (RC; blue triangle)