AZ vaccine being rolled out to NHS staff4 Jan 2021 09:16
The AZ vaccine roll out to NHS staff started yesterday. At present, due to shortages of stock, it's being prioritised for clinical staff in high risk areas (e.g. Covid wards and ICUs).
The key issue going forward with vaccines won't be mutations of the virus (those, on the whole, are irrelevant or relatively straightforward to deal with) but supply. It is becoming clear that manufacturers can't cope with the demand and are having issues producing to the levels expected/forecast. This means testing, masks, etc. are likely to be with us for the foreseeable future.