Boris Johnson will set out a five-tier warning system for the coronavirus in England today as part of the government's plans to begin slowly easing lockdown measures.
It is understood the system - with alerts ranging from level one (green) to level five (red) - is similar to the one used to inform the public about the terror threat level.
The threat level scale in regards to terrorism states that 'threat levels do not have an expiry date' and 'can change at any time as different information becomes available' Mr Johnson is expected to say England is currently at stage four but moving towards stage three in his address to the nation at 7pm.
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