No. You think they used Walmart PCR tests or something? This paper was not authored by idiots. They are a highly qualified team of European scientists. If you read the paper you will have see they used a serological assay highly specific to sars-cov-2.

You have absolutely no clue what you are talking about. You think they used Walmart PCR tests or something? This paper was not authored by idiots. They are a highly qualified team of European scientists. If you had actually read the paper you would have seen they used a serological assay highly specific to sars-cov-2.