The Control Group provide its participants with two forms of documentation; an
ID card and a proof of
participation letter. Please do read the information about these below:
The Control Group participation ID card and participation letter are NOT SARS-CoV-2 vaccine, mask or self-isolation exemptions.
Both the digital and plastic printed versions of the card and the letter provide evidence that you are a participant in the Control Group’s vital, worldwide study of the health outcomes of the vaccine-free.
