Recent, official Portuguese medical data analysis of Portuguese residents aged 12 and over shows that in Portugal, if you have had the various strains of Covid infection you are up to 80% naturally immune to the latest variant.
So far, nothing has been mentioned in the media about this recent data, and the campaign for vaccination in Portugal is still ongoing.
In the video below, Dr John Campbell, a British retired nurse educator, explains how this recent analysis shows signs of natural immunity in Portugal.
Documentation
Medical Report
https://www.nejm.org/doi/full/10.1056/NEJMc2209479
Supplementary appendix
https://www.nejm.org/doi/suppl/10.1056/NEJMc2209479/suppl_file/nejmc2209479_appendix.pdf
