I think it's certainly VERY suggestive - there is still the argument about how much titer levels actually correlate to ability to resist COVID-19 infection. But I don't see how you could look at N+ as less protective.
I think the data I've been tracking showing the lower case rates among the Unvaccinated must be because of the prior immune population within their group is even more definitive but maybe I'm predisposed to think that. :)
You're right, definitive was too strong a term, since the immune response is much more than just antibodies (unless you're asking a vaccine salesperson).
What is the UK policy in general regarding vaccinating convalescents? Is there any effort to avoid it by checking for antibodies first? That would certainly skew the populations. Otherwise it could be down to the brief period of vaccine immunity pushing infections into the future? Apologies if this is something you've covered in your discussions ...:)
It strongly indicates that the AZ vaccine is significantly worse than the PFE vaccine and the vaccinated population really should be stratified by these two types. If you combine them, prior infection looks better, if you don't, then PFE looks on par with prior infection and AZ looks noticeably worse.
This is pretty definitive!
I think it's certainly VERY suggestive - there is still the argument about how much titer levels actually correlate to ability to resist COVID-19 infection. But I don't see how you could look at N+ as less protective.
I think the data I've been tracking showing the lower case rates among the Unvaccinated must be because of the prior immune population within their group is even more definitive but maybe I'm predisposed to think that. :)
You're right, definitive was too strong a term, since the immune response is much more than just antibodies (unless you're asking a vaccine salesperson).
What is the UK policy in general regarding vaccinating convalescents? Is there any effort to avoid it by checking for antibodies first? That would certainly skew the populations. Otherwise it could be down to the brief period of vaccine immunity pushing infections into the future? Apologies if this is something you've covered in your discussions ...:)
I don't know what the UK policy is - I can't see anything in their Vaccination pages about how long to even wait after being sick to get a dose.
I did find this: https://www.ons.gov.uk/peoplepopulationandcommunity/healthandsocialcare/conditionsanddiseases/articles/coronaviruscovid19infectionsurveytechnicalarticleimpactofvaccinationontestingpositiveintheuk/october2021
It strongly indicates that the AZ vaccine is significantly worse than the PFE vaccine and the vaccinated population really should be stratified by these two types. If you combine them, prior infection looks better, if you don't, then PFE looks on par with prior infection and AZ looks noticeably worse.