[Exports_project_office] false positives

[Ivona Cetinic]

entertaining video that I am planning to share with the UK traveling team
on how to do lateral tests:
https://www.youtube.com/watch?v=Fo5zaFvVLpI

I

On Tue, Apr 13, 2021 at 10:21 PM Ivona Cetinic <icetinic at gmail.com> wrote:

> Hello team,
>
> please take a look at the write up and tell me if this is an ok  -
> sorry it took me this long, but i went deep into NHS and CDC dark web. Open
> to any suggestions.
>
>
>
> Couple of items that we have to address regarding covid testing. You will
> be tested 3 times using lateral flow test(LFtest) and 2 times using
> classical PCR. While samples for PCR will be collected by the medic,
> lateral flow test will be self-administered, and read. LFtests are in UK
> used to track asymptomatic infections and currently recommended by UK
> government to be conducted twice a week.
>
> But before that one – let me address policy that we don’t have in place
> and we should have – false positives.
>
> What do we define here as false positives?
>
> a)       False positives due to the test inherent capabilities to detect
> the presence of the targeted substance – in case of PCR test probability of
> such false positive is small (<1%) and for lateral flow test a bit higher
> (<3%)
>
> b)      “False positives” sensu previous infection. Both CDC and NHS
> don’t recommend testing in people who had a Covid-19 infection in the last
> 90 days, as it has been demonstrated that these individuals can test
> positive without being infectious or sick, and it is not considered a new
> infection (however, our protocols are requiring us to do testing).
>
> In our health plan, we have previously addressed the protocols in case
> anyone starts feeling ill during the quarantine (B.3.1). However, if
> participant is asymptomatic (especially with our vaccination rates), and we
> have a positive test we will do following:
>
> 1)      In case your LFtest comes positive, you will immediately notify
> Ivona, maintain strict isolation. LFtest will be repeated immediately 3
> times. As per recommendations of NHS - following the conversation with
> them, that person will be immediately be tested additionally with PCR test
> as well. We will notify (with help of NOC) local authorities, and present
> them with the results of the tests, your health screening documents and
> your vaccination card. If there was a previous infection within the last 90
> days, you will present those documents as well.
>
> 2)      In case your PCR test comes positive, you will immediately notify
> Ivona (I will probably know before you), maintain strict isolation. Local
> authorities will probably know as well. We will immediately do 3 lateral
> flow tests (as we have them in the house), and will repeat the PCR test (if
> approved by local health authorities), suggesting double sample collection.
> Once in contact with authorities, you will present them with the results of
> the tests, your health screening documents and your vaccination card. If
> there was a previous infection within the last 90 days, you will present
> those documents as well.
>
> Final decision is whether this is a “false” positive or not will be given
> by local authorities, and the project will proceed following their
> recommendations, and procedures outlined in the EXPORTS health protocol.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://espo.nasa.gov/pipermail/exports_project_office/attachments/20210413/1b5e2fe4/attachment.html>