[citation needed] His PhD was for studies on the central nervous system infections in Vietnam, under the supervision of Nicholas White and John Newsom-Davis.
[citation needed] In 1990, Solomon was house officer to David Weatherall at the Nuffield Department of Medicine in the John Radcliffe Hospital, Oxford.
With the support of a Wellcome Trust Training Fellowship, he studied central nervous system infections at the Oxford University Clinical Research Unit in Vietnam (1994-7).
[28] Solomon was appointed Commander of the Order of the British Empire (CBE) in the 2021 Birthday Honours for services to neurological and emerging infections research.
[38] This included developing the Liverpool Outcome Score for quantifying the disability caused by Japanese encephalitis[39] and helping produce the WHO Surveillance Standards for detecting the disease.
[48][49] To increase public and patient involvement in the Institute of Infection and Global Health, he established the Saturday Science Programme at World Museum Liverpool.
[51][52] At TEDx Liverpool 2014, he gave a talk on "Sex, Drugs and Emerging Viruses",[53] appearing alongside Beermat Entrepreneur Mike Southon, and educationalist Sir Ken Robinson.
[59] On BBC Radio 4's Great Lives he discussed the children's author Roald Dahl, whose fascination with medical science impacted both on his life and his writing.