The health secretary sets out a strategy to achieve a "significant" increase in testing following criticism of the government. The "five-pillar" plan involves: * Swab testing at Public Health England and NHS labs; * Using commercial partners, including universities and private businesses, to establish more swab testing; * Introducing antibody blood tests to determine whether people have had COVID-19; * Surveillance to determine the rate of infection and how it is spreading across the country; * Build an "at-scale" diagnostics industry to reach 100,000 tests by the end of April. The promise comes after it was confirmed that another 569...