Following criticism, Boris Johnson says the government are "massively increasing" coronavirus testing.
Dr Alfa Saadu worked as a medical director and across many hospitals in London, his family said.
Officials say the benefit system is coping despite unprecedented demand due to pandemic.
Wimbledon is cancelled for 2020 due to the coronavirus pandemic - so where does that leave tennis for the rest of the year?
All Champions League and Europa League matches are suspended "until further notice" because of the coronavirus pandemic.