Boris Johnson's £37BILLION Test & Trace service, run by Dido Harding & using private firms Serco & Deloitte, has lost track of 550 MILLION COVID tests & failed to reach nearly 100,000 people who had tested positive, failing to identify their contacts. 🤬https://t.co/mbxEvdkscc

— GET A GRIP (@docrussjackson) June 25, 2021