Thousands of people living in Tier 4 areas in England are being told to stay at home at all times under new shielding advice from the government.
Letters are being sent to those deemed clinically extremely vulnerable and living in areas of southern England which moved into the new and toughest coronavirus lockdown tier on Sunday.
The group includes those with reduced immune systems, specific cancers or severe respiratory conditions such as cystic fibrosis or severe asthma, adults with Down's syndrome, and pregnant women with significant heart disease.
Those who are clinically vulnerable are being told they should not go out to the shops, pharmacies or work, even if they are unable to work from home.