Productivity losses due to CFS/ME in the UK have been estimated to be more than £100 M per annum [2].
2. Collin SM, Crawley E, May MT, Sterne JA, Hollingworth W. The impact of CFS/ME on employment and productivity in the UK: a cross-sectional study based on the CFS/ME national outcomes database. BMC Health Serv Res. 2011;11(1):217.
There are 100 million pound figures are ridiculously low. It is based on assuming there are 4424 adults with CFS in the UK, which this study itself found is a ridiculous claim.