This is a list of elements which the Gateway team check and, if necessary, correct on every Word document submitted for publication as a PDF to the PHE website.

...

Never capitalise whole words for emphasis. Capitalised words mistaken for acronyms. If emphasis is required, use bold (sparingly).

COVID

COVID-19 is an acronym.

1. It must always be spelt in capitals.
2. The first use of 'COVID-19' in every document should spell out the word 'coronavirus' before giving the acronym, thus: 'coronavirus (COVID-19)'

Dates

23 March not ‘23rd of March’.

...