I think that is definitely a possibility. With the corona pass many countries have, you can get into places without a test beforehand if you've been vaccinated or tested. Which doesn't mean you can't still have the virus and be contagious.

I'm a litte worried about my London trip - not for myself, but I'm returning to my parents' place afterwards. Their vaccination is a while ago already but I don't think they've been offered a booster shot yet. Although I will be there for less than 48 hours before I'll be on my way home again so I guess if I did catch the virus in London, the chances of me spreading it to them are very low. It's gonna be weird, I'm still used to masks being mandatory inside. Do people generally still wear masks inside in the UK or has that mostly been abandoned after freedom day?

Also thinking of the logistics of the proof of vaccination if we're still in this mess next year? My proof of vaccination is only valid for a year. In Italy it's only 270 days - and I have tickets for an event there next year. Obviously if the situation is still like it is now, it will most likely be cancelled. (I bought the ticket in 2019, the event was supposed to be in 2020, then postponed to 2021 and now 2022 so I really, really hope it can finally happen after three years!)