Thought I would share this update. All asthmatics (mild & moderate) are now classed as 'clinically vulnerable' and are advised "to minimise contact outside of their household".
gov.uk/government/publicati...
Also, this may be particular useful if you are concerned about working.
nhs.uk/conditions/coronavir...
The 'clinically vulnerable' will not be receiving a letter from the NHS. You should only leave your home if it's essential, for example, to get food or medicine.