We don’t have it past early midsummer yet but this[1] goes to the beginning of summer. You can extrapolate out from the trend lines. I prefer to take a conservative ie. maximally pessimistic view because of the potential for human suffering. Ymmv
““In my opinion, a reasonable worst case scenario could see protection below 50% for elderly people and healthcare workers by winter,” he said. “If there are high levels of infection in the UK, driven by loosened social restrictions and a highly transmissible variant, this scenario could mean increased hospitalisations and deaths. We urgently need to make plans for vaccine boosters and decide if a strategy to vaccinate children is sensible.””
Nothing past 6 months or so yet, but again the original British report which is discussed in the bmj article shows trend lines and it’s easy to extrapolate if you are good with charts/data.
[1] https://www.bmj.com/content/374/bmj.n2113
““In my opinion, a reasonable worst case scenario could see protection below 50% for elderly people and healthcare workers by winter,” he said. “If there are high levels of infection in the UK, driven by loosened social restrictions and a highly transmissible variant, this scenario could mean increased hospitalisations and deaths. We urgently need to make plans for vaccine boosters and decide if a strategy to vaccinate children is sensible.””
See also https://www.medrxiv.org/content/10.1101/2021.08.24.21262423v...
Nothing past 6 months or so yet, but again the original British report which is discussed in the bmj article shows trend lines and it’s easy to extrapolate if you are good with charts/data.