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Dear all,
Thank you for this very helpful thread!
I was just about to setup stricter rules / recommendations for our facility as the COVID19 wave is hitting Switzerland.
So far we just asked everybody to wash hands thoroughly before and after using the microscope but I will now include your points, in particular the one concerning the disinfection of the oculars.
I will also try to motivate people to rather analyse their data remotely from home than imaging new samples.
Thanks a lot!
Best,
Oliver
Oliver Biehlmaier, PhD | Head of Imaging Core Facility | Biozentrum, University of Basel | Klingelbergstrasse 50/70 | CH-4056 Basel
Phone: +41 61 207 20 73 | Email: [log in to unmask]<mailto:[log in to unmask]> | www.biozentrum.unibas.ch/imcf<http://www.biozentrum.unibas.ch/imcf> | www.microscopynetwork.unibas.ch<http://www.microscopynetwork.unibas.ch/> | https://www.ls2.ch/sections/microscopy | @imcf_basel<https://twitter.com/imcf_basel>
On 11 Mar 2020, at 22:33, Martin Wessendorf <[log in to unmask]<mailto:[log in to unmask]>> wrote:
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I misread the article: hydrogen peroxide was tested against a *suspension *of
coronavirus particles--it was not tested as a solution to use to disinfect
*surfaces*. On surfaces, 70% ethanol for 1 minute was reported to reduce
various coronaviruses by factors of 10^2 to 10^4.
Here's the article again if you want details:
https://www.journalofhospitalinfection.com/article/S0195-6701(20)30046-3/fulltext
Martin
On Wed, Mar 11, 2020 at 1:20 PM Louis Kerr <[log in to unmask]> wrote:
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I agree that >60% Ethanol degrades the finish and plastics/rubber over
time. We have routinely used Ecolabs Peroxide Multi Surface Cleaner and
Disinfectant. It contains 8% Hydrogen Peroxide.
Very useful discussion as I am currently writing up internal
recommendations as well.
Louie
Louie Kerr | Director, Imaging Services; Staff Scientist
Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA 02543
508-289-7273 | [log in to unmask]<mailto:[log in to unmask]> | www.mbl.edu<
http://www.mbl.edu/>
________________________________
From: Confocal Microscopy List <[log in to unmask]> on
behalf of Glen MacDonald <[log in to unmask]>
Sent: Wednesday, March 11, 2020 1:53 PM
To: [log in to unmask] <[log in to unmask]>
Subject: Re: COVID19: Instrument cleaning protocols
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Has anyone tried other disinfectants such as 3% peroxide? 70% EtOH tends
to remove some paints, decals and rubber/plastic finishes.
Great discussion,
Glen
On Mar 11, 2020, at 10:00 AM, Cesare|ALEMBIC <[log in to unmask]>
wrote:
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Yes Martin,
we use 70% Ethanol for eye-pieces like for each workspace
(computer+microscope+devices,etc.)
They recommended to us considering its volatility and fire point having
to use (relatively) "a lot" in a (relatively) small room.
Best,
Cesare
Il 11/03/2020 17:40, Martin Wessendorf ha scritto:
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Dario/Cesare--
THANK YOU BOTH very much for emphasizing the importance of
decontaminating
the eye-pieces. It's obvious in retrospect but I was focussed on the
computer keyboard, mouse, etc. --Are you using 80% ethanol on the
eye-pieces?
Best wishes to you and all our other colleagues. Good luck. Please
keep
us posted on developments or recommendations.
And thank you to all those working to control this beast.
Martin Wessendorf
On Wed, Mar 11, 2020 at 8:47 AM Cesare|ALEMBIC <[log in to unmask]>
wrote:
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Dear Javier,
here in Milano, as already mentioned by Mario and Dario, we are still
available (althouhg at lower level as well) but we implemented,
according
to Institute Direction, different measures to reduce as much as
possibile
the access to the Facility and we recommended to our Users to perform
only
urgent and undelayable experiments.
Facility Staff:
we reduced staff members daily present to the minimum is possible
Facility entrance:
- Instruments will be available only from 08:00 to 18:00 from Monday to
Friday (instead 24/24h, 7/7d) and instrument usage is not allowed on
holidays and outside of this time schedule.
- A disposable glove dispenser has been set up outside the entrance
door
of the facility. All Users must wear them before entering the Facility
and
leave them in a dedicated container as they finish their activities.
- the entrance to the Facility will be regulated in order to avoid any
form of crowding that sees multiple subjects in the same room at a
distance
of less than 1.8 meters.
- Instruments use, including microscopes mouse and keyboards, must be
done
by wearing gloves and, as much as possible, with the own protective
glasses
(please, remember that Covid-19 seems particularly transmitted by
aerosol
contact with conjunctive).
- At the end of each session, each User must notify it to the Facility
Staff who will disinfect the exposed parts with Ethanol 70%
(microscope,
mouse, keyboards, touchscreens etc. all parts that could be usually
touched
by hands or eyes, using a disposable cloths.
- we require only one person per Instrument and, for the same reason,
trainings and assisted uses are temporarily suspended.
Instruments maintenance :
no different procedures respect usual maintenance cleaning
I hope this can be useful and a special hello to my "Milanesi"
collegues!
Cesare
Dr. Cesare Covino, M.Sc.
Facility Manager
ALEMBIC
Advanced Light and Electron Microscopy BioImaging Center
San Raffaele Scientific Institute
DIBIT 1 S2B4a
via Olgettina 58, 20132 - Milano - Italy
Tel +39-022643-4636(others -4640, -4641)
Fax +39-022643-4646
e-mail: [log in to unmask]<mailto:[log in to unmask]>
ALEMBIC webpage: http://alembic.hsr.it
Il 11/03/2020 10:39, F Javier Diez Guerra ha scritto:
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Dear listers,
In Madrid, teaching and many other collective activities have been
suspended for 15 days because of COVID19. On the other hand, research
institutes continue with their normal activity although at a lower
level.
In order to reduce as much as possible the spread of the virus, our
advanced bioimaging facility is considering to implement additional
measures or protocols (beyond common sense).
We would be very grateful if you could share your advice, suggestions
and
protocols especially regarding the cleaning procedures of the
instruments
(binocular, focus knobs, switches, stage joysticks, etc) and other
measures
that affect to the users (wear gloves, etc). We are interested to know
about easy and effective cleaning procedures that would not be harmful
for
the optics, electronics, etc.
Thanks for your input
Best regards
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