Covid recovery certificate

[MinaAli]

have a 13 year old who have had covid four weeks ago. To travel abroad, he needs an immunity form or declaration which shows he has got covid and he is now immune. Because he is not still vaccinated . Anybody knows where can I get that please?

Will be watching with interest - apparently it’s impossible to get an official NHS certificate for under 16s.

Also watching just because I'm not going for a PCR despite definitely having COVID (DH and DD confirmed by PCR, I'm getting strong positive every day on LFTs now but can't cope with more Test & Trace phone calls.)

The only thing making me wobble is possibly needing to prove I've had COVID at some point?

I'm early 40s and double jabbed though, so hopefully not an issue.