[Boris Johnson corona virus]HENRY NICHOLLS/POOL/AFP via Getty Images * The UK government is planning draconian measures to deal with an impending coronavirus outbreak. * UK Prime Minister Boris Johnson on Tuesday unveiled plans to potentially create no-go zones and bans on mass public gatherings in order to deal with the crisis. * The public could be instructed to work at home for at least three months in order to prevent further spread of the virus. * The government estimated that nearly 20% of British employees could be off work at one time. * Officials expect the virus to spread rapidly across the country within weeks. * The government's reasonable worst case scenario is that 1% of people who contract the virus will die. * YOU CAN READ THE LATEST ON THE ONGOING GLOBAL CRISIS HERE. * Visit Business Insider's homepage for more stories. The UK government is preparing to create no-go zones and ban mass public gathering as it gets ready for a major outbreak of coronavirus within weeks which could affect up to a fifth of the working-age population. Boris Johnson will on Tuesday use a press conference to outline his government's plan for dealing with the crisis, warning that "it is highly likely coronavirus will spread more widely in the coming days and weeks."SEE THE REST OF THE STORY AT BUSINESS INSIDERNOW WATCH: Extremists turned a frog meme into a hate symbol, but Hong Kong protesters revived it as an emblem of hope SEE ALSO: * The EU will tell Britain to give back the ancient Parthenon Marbles, 'brutally removed' from Greece over 200 years ago, if it wants a post-Brexit trade deal * Boris Johnson will wait another 3 days before holding his first 'emergency' meeting on the coronavirus crisis * The Trump administration barred a top US disease expert from speaking freely to the public after he warned the coronavirus might be impossible to contain