Nairobi, April 25 -- Nurse Mary Agyapong, aged 28, was pregnant when she was admitted to hospital in Luton with Covid-19.

Despite the medics' best efforts, Mary died, but her baby was delivered by caesarean section and at latest report is "doing very well".

Mary's story prompted tears and tributes across the nation. Colleagues described her as "a fantastic nurse who devoted her life to the health service", and a fundraising page was set up to support her baby and family. Within days it had raised more than £100,000 (Ksh13 million).

Mary came from a Ghanaian family and was one of many thousands of black and Asian nurses and doctors who work for the National Health Service. Evidence is emerging that people from these ethnic minorities...