UK Department of Health states that “N antibody levels appear to be lower in people who become infected after two doses of vaccination.”

"N antibody levels appear to be lower"

https://www.kidderminstershuttle.co.uk/news/19900390.maybe-covid-anti-vaxxers-real-nhs-heroes/

"If being double-jabbed means permanent reduction in the efficiency of our immune systems, then the NHS refuseniks are brave heroes whilst the vast majority have been conned into the worst health position imaginable."
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https://twitter.com/VerrethRebecca/status/1490468811732094976

In its Wk 42 “COVID-19 Vaccine Surveillance Report”, the UK Department of Health states that “N antibody levels appear to be lower in people who become infected after two doses of vaccination.”
It goes on to say that this drop in antibodies is permanent.