Steve Forrest has photographed some of the leaders in the global response to the coronavirus virus over the years while working the the fields of pandemics.
These photos show virus experts from around the world, Tony Fauci, Director of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health, United States.
Dr Deborah Birx, ambassador-at-large and US global Aids coordinator and now part of the United States coronavirus task force.
Director-General of the World Health Organisation, WHO, Dr. Tedros Adhanom Ghebreyesus.