Boris Johnson delivering government daily coronavirus press briefing

The transcript discusses the reduction in testing numbers and infection rates, indicating progress in controlling the spread of infection. It highlights the government's satisfaction with meeting the third test based on available data. The operational challenges, including testing capacity and PPE supply, are addressed, with significant improvements in testing numbers and PPE procurement. The government has secured numerous deals for PPE and plans to manufacture domestically. An update on NHS test and trace performance is expected soon.

What is the significance of the third test mentioned?

What operational challenges are mentioned regarding testing capacity?