Was watching the update yesterday and was surprised to hear what I always expected of the vaccination - that a lot of people mistakenly believe they are instantly protected, but as was stated in the briefing - once injected wait 3-4 weeks and then some protection against the severe symptoms, you could catch it and spread it even though vaccinated, the second dose improves the reduction to severe symptoms and increases the protection timescale, a vaccine only protects against the symptoms and boosts the immune system to help fight it, not stop it dead in its tracks.
I dont know if most people remember what we were asked to do in the first wave and that is to wear gloves - I have the blue nitrile gloves (from work when I did a couple shifts last year) and put them on and sanitize them when entering a shop and wash them when I get home, just in case i pick something up and do not buy it - therefore protecting others, but I dont see anyone else wearing gloves and I would if this why its spreading more easily other than its viralance