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Re: Important Issue for Immunity Credentials

From: Steven Rowat <steven_rowat@sunshine.net>
Date: Wed, 8 Apr 2020 09:14:59 -0700
To: public-credentials@w3.org
Message-ID: <b1f834df-6b1b-147b-0002-3b0d84230ec1@sunshine.net>
On 2020-04-07 11:35 pm, Victoriano Giralt wrote:
>  From my work with the lab at Kings college, the "good" tests provide a
> triplet of ternary results:
> Overall "result": Yes/No/unclear
> IgM: High/Medium/Low
> IgG: High/Medium/Low
> 
> IgM and IgG are the real immunity results showing how long ago it has
> developed.

Although I'm not a doctor, I can add that yesterday the doctor in NY Governor Cuomo's press conference explained that there is a key difference between these IgM and IgG, which is that one of them shows past infection, and one shows current. He was explaining that an immunity certificate needs to reflect this difference accurately in order to show that people are over it and do not still have it. 

If my memory of what he said is correct, he was saying that the test they're developing only uses one of them, the one that shows that the infection is 'old' and not current, and that this is sufficient and what is required for an immunity certificate.

Steven
Received on Wednesday, 8 April 2020 16:15:21 UTC

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