References
1 Lu R, Zhao X, Li J, et al. Genomic characterisation and epidemiology of 2019 novel coronavirus: implications for virus origins and receptor binding. Lancet 2020; 395 : 565–74.
2 Moldofsky H, Patcai J. Chronic widespread musculoskeletal pain, fatigue, depression and disordered sleep in chronic post-SARS syndrome; a case-controlled study. BMC Neurol 2011; 11 : 1–7.
3 Hives L, Bradley A, Richards J, et al. Can physical assessment techniques aid diagnosis in people with chronic fatigue syndrome/myalgic encephalomyelitis? A diagnostic accuracy study. BMJ Open 2017;7 : e017521.
4 Kida S, Pantazis A, Weller RO. CSF drains directly from the subarachnoid space into nasal lymphatics in the rat. Anatomy, histology and immunological significance. Neuropathol Appl Neurobiol 1993;19 : 480–8.
5 Montoya JG,Holmes TH, Anderson JN, et al. Cytokine signature associated with disease severity in chronic fatigue syndrome patients.Proc Natl Acad Sci 2017; 114 : E7150–8.
6 Carruthers BM, van de Sande MI, De Meirleir KL, et al. Myalgic encephalomyelitis: international consensus criteria. J Intern Med2011; 270 : 327–38.
Contributor statement: Dr. Ray Perrin led on the writing of the article with contributions in terms of literature search and current perspective from Dr. Lisa Riste, Dr Andreas Walther and Dr. Adrian Heald. Dr. Annice Mukherjee provided further academic input and also senior review. All authors contributed to the final version of the manuscript and approved the final version.