People who were shielding in the last lockdown are advised by the government to stay at home. This includes 'people with cancers of the blood or bone marrow such as leukaemia, lymphoma or myeloma who are at any stage of treatment'.
They advise you go out just for exercise and medical appointments. You are strongly advised to work from home and if you can't, then not to work during lockdown. If you have new symptoms (whether or not you've been diagnosed with blood cancer before or not please contact your GP without delay.
The government's list includes: