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Re: COVID-19 contacts tracker (Re: a brief pondering)

Stephane Bortzmeyer <bortzmeyer@nic.fr> Mon, 20 April 2020 15:21 UTC

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Date: Mon, 20 Apr 2020 17:20:32 +0200
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: Christian <cdel@firsthand.net>
Cc: Rob Sayre <sayrer@gmail.com>, John Wroclawski <jtw@csail.mit.edu>, IETF discussion list <ietf@ietf.org>, Vittorio Bertola <vittorio.bertola=40open-xchange.com@dmarc.ietf.org>
Subject: Re: COVID-19 contacts tracker (Re: a brief pondering)
Message-ID: <20200420152032.GA10725@nic.fr>
References: <2fa6a8c8-7639-a378-2ff1-3f8697556b66@cisco.com> <24cd67ab-df5a-cc2f-745f-ace19d5325ea@network-heretics.com> <59D332BC-F85E-4744-A3D0-2514551154E8@csail.mit.edu> <4E92D147-3ED1-4109-ACC7-DFA16F1D41C2@gmail.com> <7EEFEEB4-CA51-4FFF-9BAA-857EAEA49FDD@csail.mit.edu> <CAChr6Sxet86chG81qLCGzKCzdJmZZ0L6Duh_hnk+tB5WYfaR0Q@mail.gmail.com> <2137617384.18423.1587048987734@appsuite-gw2.open-xchange.com> <D8F1A0A3-7FAC-4FA3-B119-C0609B731AA2@csail.mit.edu> <CAChr6SykUyCj8MUDddySQSjox+ygHZ3_8M0vof92v-kTq4A8nw@mail.gmail.com> <e4a27626-27e6-077b-ac64-0bad2ea21dc6@firsthand.net>
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On Fri, Apr 17, 2020 at 11:16:57AM +0100,
 Christian <cdel@firsthand.net> wrote 
 a message of 229 lines which said:

> It  persists on surfaces. It can be picked up off a surface and
> redeposited on another surface. It is not clear if covid-19 is
> mainly being transmitted due to face to face transmission, or via
> infected droplets being left on surfaces. Those infections do not
> reliably fall within the range of bluetooth.

The PACT protocol, in its specification, mentions the issue and
suggests a possible solution: a phone (or, actually, any thing that
has Bluetooth and runs software) left on the surface on sensitive
places (such as a shop counter), redistributing the IDs it detected.

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