Offices can stay open for those unable to work from home, but anyone working in an office is advised to remain inside as much as possible.
The Government guidance reads: “To help contain the virus, everyone who can work effectively from home must do so.
“Where people cannot do so (for instance people who work in critical national infrastructure, construction or manufacturing) they should continue to travel to work/attend their workplace.
“This is essential to keeping the country operating and supporting vital sectors and employers.
“Public sector employees working in essential services, including education settings, should continue to go into work.
“The risk of transmission can be substantially reduced if COVID-secure guidelines are followed closely.
“Extra consideration should be given to those people at higher risk.”