We know that they used a test with low specificity and sampled high-risk groups. Chances are it's biased, but we can't be certain until it's published 
(Oh, sorry, forgot to mention that two of those examples - CEBM and CDC - are "expert opinion" and have been widely questioned. CEBM has also now increased their estimate three times as new evidence emerges)
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Lol, you can check the cached version if you want. It says right at the top when it was last updated
End of conversation
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