There is no mention of how to get it at home, if extremely vulnerable. Travelling around to and from the place giving vaccine is a death sentence. One in 16 (and rising) in various parts of London now has the infection. Protection does not begin until up to 21 days after the vaccine. It does not work retrospectively, on whatever was picked up going to and from the place giving vaccinations.
Travel anywhere, even to the nearest g.p. or pharmacist, let alone a mega-centre, would be a Dignitas alternative. A 90 year old or a cancer patient cannot risk opening the front door. (Other than to offer an arm on the doorstep for a jab) It wouldn't be impossible to get the patient to prepare by having a chair inside, near the door, so they can sit for the compulsory 15 minute observation, and for the visiting vaccinator to have a shooting stick type of perch, so they can sit outside, during that time, working online, and occasionally calling out or peeping round the door, to ascertain no adverse side effects)
We can all pretend, too, never to have heard of the South Africa variant, assumed to be even more easily transmitted and probably with different, possibly worse, effects, as well as not necessarily touched by any of the current vaccines, all designed to work on the first type. Maybe it will, or maybe the composition of the vaccines can be tweaked to be effective for it. It takes time.
I note, with cynical sorrow, that the wording for fiddling the figures is already in place: "We will offer the vaccine" is a preparation for victim blaming. The vulnerable, living alone, protecting themselves by never leaving their homes for any reason, will be blamed for choosing not to play Russian Roulette, with very poor odds. The infection rate shot from one in 20 to one in 16 in a couple of days. When the peasants are instructed to "act as if everyone is infected", it is all too close to the truth.
But, implicit but not spelled out, is a clear message "everyone is possibly infected, masks and hand washing having either been ignored or making no difference, especially with the new variant. Therefore, if you are exceptionally vulnerable to infection, just put on a mask and wander around among them, as the price of getting a jab. If you dare not, you will be branded as having refused our offer. No alternative, and no option even for those in the allegedly top priority groups to pay for a private person to do a home (doorstep) visit. Walk straight through the minefield or no jab for you."