U.K., Sept. 10 -- More than 2,000 health professionals have returned to work in the UK's National Health Service (NHS) to help fight COVID-19, many of whom have come out of retirement.

According to figures sourced by software company WhosOffice, 2,150 former NHS staff have returned to the workforce since the start of the pandemic in March, as part of the Bring Back Staff scheme.

This followed a public appeal by the government for nurses and doctors to return and help tackle the virus. Emergency legislation was quickly passed so that retired doctors and nurses could easily re-register. According to reports, although 25,000 people signed up, only 1,600 had been deployed in hospitals by April.

WhosOffice, a software company that creates s...