Good news, not so good news week.
Not so good news: vaccine breakthrough data compared to initial correlates of protection from Oxford Uni is starting to show that Covid can infect most people who are vaccinated, only 20-25% have sufficient neutralizing antibody response to prevent actual infection.
Good news: Vast majority have an overall antibody response that protects and prevents symptomatic infection (you are infected but don't realise). That particular antibody response can be accurately measured and correlates with severity (or lack of) symptoms. Hardly anyone vaccinated will show severe symptoms. Also it does appear that vaccinated individuals are less likely to infect others due to the lack of viral load developing.
Personally I see this as a warning that "herd immunity" will not be attained with this virus and it will become endemic like the other circulating coronas. I will be continuing to wear masks in shops etc. and take basic precautions, I think everyone should do that for some time for the time being. I don't believe another lockdown makes any sense, but we should all consider basic safe working practices where practical. Would be helpful if the young people dithering got vaccinated as well. It will definitely reduce the spread. Maybe free pizza will do the trick
More good news: studies are underway to test the best booster options. This includes mixing vaccines. One piece of data shows that 2x AZ + a booster from an RNA vaccine (Pfizer or Moderna) gives a really strong response. I have had AZ, would be happy to get Pfizer as a booster.