COVID-19

COVID-19 delay phase and lockdown

Partly documented

Government moved from delay-phase mitigation to national stay-at-home restrictions.

Fact-check

Delay-phase and later lockdown documented; official adoption of “herd immunity” as a declared objective is disputed.

The evidence

Links go to the original records: Hansard, legislation, official guidance and news reports. A before-and-after pair is not always proof of a direct contradiction, so read the originals for exact wording.

Before: the earlier position

Delay phase, 12 March 2020 (opens in new tab)
Government release

After: what changed

PM address, 23 March 2020 (opens in new tab)
Speech

What the source documents claim

These are summaries from the original documents behind this archive. They have not been checked word for word. Where they differ from the fact-check above, the fact-check is the more reliable account.

COVID-19 Herd Immunity & Lockdowns (March 2020)

Document A, case 02

Original advice: In early March 2020, the UK government resisted immediate strict lockdowns, advocating a phased 'delay' strategy aimed at managing the curve and building population immunity while shielding the elderly.
How it was framed: At Downing Street press conferences on 12 and 16 March 2020, Prime Minister Boris Johnson, Chief Scientific Adviser Sir Patrick Vallance, and CMO Prof Chris Whitty stated every step was 'guided by the science' and behavioural modelling from SAGE and SPI-B.
Later change: On 23 March 2020, following revised Imperial College London epidemiological modelling projecting 250,000+ deaths, the government enacted a full national lockdown under the exact same 'following the science' banner.