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Re: Starting ringing



As for testing, despite the fact that the technology for quick/easy tests

exists, none of them have been scaled up yet for large-scale use.  Current

testing may only provide a delayed snapshot of exposure.



Michael, oh so true

We (NEB have a quick test that uses LAMP technology and have released a 
kit, for research use only, that works quite well.  However it is not 
100%, nor is anything else, and as you say it is a snapshot in time.  That 
we have the technology and the enzymes yet we are not testing at NEB 
indicates there are flaws in all the test kits out there. I would be 
hesitant to rely on any testing to make decisions on who should ring and 
who should not.



At work, we are all wearing masks when around each other, washing hands 
frequently, avoiding close contact as much as possible and have cleaning 
crews cleaning equipment and surface’s throughout the day.  We have 
reduced staffing by almost 75% and rotating shifts.  So far so good.  It 
probably helps our sites are in Ipswich and Rowley and not downtown.



Some links from our website that may be of interest to some of you
https://www.neb.com/covid-19/solutions-available-from-new-england-biolabs-supporting-covid-19-research

https://www.neb.com/products/e2019-sars-cov-2-rapid-colorimetric-lamp-assay-kit#Product%20Information


Hope everyone well and hope at some point will get into town again!

Best

Maurice














On 7/23/20, 4:28 PM, "Michael Tartell" <tartell g harvard edu> wrote:



    EXTERNAL SENDER





    I apologize to all for not being more active, both in online ringing

    sessions and in this thread.  Work has been especially busy and 
draining in

    recent months, for both SARS2 specific and general grad school reasons.



    I don't really have anything to add, and the DC ringers list I think is

    very comprehensive.  Masks should be required.  Outside of specific 
medical

    environments, face shields are relatively unproven.  Opening windows 
is a

    good idea.  I can tell you an air circulator with a HEPA filter will 
trap

    viruses (it's what we use in labs to exhaust the airflow when working 
with

    viruses), but I have no idea if such a system would be anything close 
to

    feasible in tower.



    As for testing, despite the fact that the technology for quick/easy 
tests

    exists, none of them have been scaled up yet for large-scale use.  
Current

    testing may only provide a delayed snapshot of exposure.



    The long story short is it will all come down to risk tolerance.  Good

    mitigation procedures during practice will significantly reduce the

    possibility of transmission (others may have a better grip of the 
actual

    probabilities than me), and good practices in daily life will minimize 
the

    possibility someone will bring it to the tower at all.  However, the 
risk

    of transmission will be low, but never zero.



    I'm hoping things will slow down a bit and I'll be able to make it to

    online practices again, but it might be a few more weeks (obviously, 
all my

    plans to come visit in person were smashed long ago).  I hope you all

    continue to stay safe and healthy.



    -Michael Tartell



    
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    On Thu, Jul 23, 2020 at 11:12 AM John Schreiner <jeschreiner17 gmail 
com>

    wrote:



    > My thoughts have been towards purposeful air circulation and 
filtration.

    > They make air filter units for workshops that are usually installed

    > horizontally over a bench, but if we installed one close to the 
center of

    > the ringing room with the filter at the bottom, a little above head 
height,

    > and outflow pointing up, my ideal-world airflow would come down 
behind the

    > ringers, gather up all exhalations, and draw them straight to and 
through

    > the filters, sending clean air up to the ceiling to repeat the 
cycle. It

    > does not have to be a terribly strong current, just a consistent one.

    >

    > The two problems I see are that the fluid dynamics of an idealized 
round

    > formation may not happen in a square-footprint room, especially if 
windows

    > are opened. The second problem is that the inexpensive (~$200) units 
tend

    > to be noisy, around 65 decibels, which may still be workable but 
certainly

    > not great for communication.

    >

    > Even the inexpensive units have a 5 micron pre-filter and 1 micron 
inner

    > filter, which is more than sufficient for wood dust but I am not 
sure about

    > droplets. Finer filters yet may be available, and I have heard that 
there

    > are filters capable of cleaning the air sufficiently. Collecting all 
of the

    > exhaled droplets (that evade masks) in the filters seems a bit 
gross, but

    > if they really do die in three days on hard surfaces and faster on 
soft

    > surfaces, leaving the unit running on a timer for a while after 
ringers

    > leave and not messing with it for three days ought to be safe.

    >

    > John

    >

    > On Thu, Jul 23, 2020 at 11:38 AM Gregory Russell <gfr10598 gmail com>

    > wrote:

    >

    > > Regarding testing, there is discussion heating up about differences

    > between

    > > tests like ID Now vs PCR.  For this purpose, a cheap, fast test 
that

    > > detects high viral load may be much more useful than a more 
sensitive

    > test

    > > that is slow and expensive.  Recent medcram video addressed this, 
though

    > > I'm afraid it got technical details wrong.

    > >

    > > But the focus in the US has been on the latter, so the 
availability of

    > the

    > > former is lagging.  8-(

    > >

    > > On Thu, Jul 23, 2020, 11:14 AM Austin Paul <austinjpaul gmail com>

    > wrote:

    > >

    > > > Thanks all for the discussion.

    > > >

    > > > I've been talking with Dale who has been communicating with 
Advent and

    > I

    > > > have created a survey that I will send around shortly after some

    > revision

    > > > (probably sometime this afternoon).

    > > >

    > > > Some points regarding above:

    > > > - Should it be relevant, I would advise towards the ,13,5,7 over 
the

    > > > 1,4,6,8: strapping to raise the tenor is right out, and doing it 
alone

    > > > might be too aerobic and particle-generatey for the time being. 
(I also

    > > > think the odd-bell set sounds nicer, but that's a personal taste)

    > > > - You can look up what the WHO says about aerosol transmission, 
but

    > > > basically the jury's out so we can't rule it out yet.

    > > >

    > 
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    > > >

    > 
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    > > > - Testing is not easy, painless, and accessible enough to make it

    > > feasible

    > > > to have people tested every time before ringing. And as a further

    > point,

    > > > false negatives are a thing, today's Globe has a nice op-ed 
about it

    > > here:

    > > >

    > > >

    > >

    > 
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    > > >

    > > > On Thu, Jul 23, 2020 at 10:32 AM Richard Morse via

    > Boston-change-ringers

    > > <

    > > > boston-change-ringers cosmos phy tufts edu> wrote:

    > > >

    > > > > Ok, I’ve just spent a bit looking through my RSS feeds at both 
home

    > and

    > > > > work, and also doing some googling. Whatever I saw, it didn’t 
come

    > > > through

    > > > > RSS, which means it was probably through Twitter, so that’s not

    > > > trustworthy

    > > > > (not that RSS is more inherently trustworthy, but it’s easier 
for me

    > to

    > > > > find it and evaluate the source).

    > > > >

    > > > > So I also searched online (both DDG and Google). Apparently 
right now

    > > the

    > > > > answer is that there is no consensus about whether face 
shields can

    > > > replace

    > > > > face masks. I’ve found a bunch of different news sites (not 
wildly

    > > > partisan

    > > > > ones, but ones that at least pretend they are interested in the

    > truth)

    > > > > basically saying that there is not enough evidence.

    > > > >

    > > > > The CDC’s guidance is:

    > > > >

    > > > > > It is not known if face shields provide any benefit as source

    > control

    > > > to

    > > > > protect others from the spray of respiratory particles. CDC 
does not

    > > > > recommend use of face shields for normal everyday activities 
or as a

    > > > > substitute for cloth face coverings. Some people may choose to 
use a

    > > face

    > > > > shield when sustained close contact with other people is 
expected. If

    > > > face

    > > > > shields are used without a mask, they should wrap around the 
sides of

    > > the

    > > > > wearer’s face and extend to below the chin. Disposable face 
shields

    > > > should

    > > > > only be worn for a single use. Reusable face shields should be

    > cleaned

    > > > and

    > > > > disinfected after each use.

    > > > >

    > > > > So who knows…

    > > > >

    > > > > Ricky

    > > > >

    > > > >

    > > > >

    > > > > > On Jul 23, 2020, at 8:25 AM, Richard Morse via

    > Boston-change-ringers

    > > <

    > > > > boston-change-ringers cosmos phy tufts edu> wrote:

    > > > > >

    > > > > > I just saw yesterday or the day before some article saying 
that

    > face

    > > > > shields by themselves are not effective; you need the masks as 
well…

    > > > > >

    > > > > >> On Jul 23, 2020, at 4:34 AM, Gregory Russell <gfr10598 
gmail com>

    > > > > wrote:

    > > > > >>

    > > > > >> Some other ideas...

    > > > > >> 1. are full face shields an acceptable alternative to masks?

    > > > > >> 2. Should we investigate installing acrylic barriers?

    > > > > >> 3. Could/should we organize different bands with different 
levels

    > of

    > > > > risk

    > > > > >> tolerance?

    > > > > >>

    > > > > >> For the latter, I would envision creating dividers, 
suspended off

    > > the

    > > > > >> floor, 3' high, basically like an apple slicer with a larger

    > center.

    > > > > >> Probably about $1000 for materials.

    > > > > >>

    > > > > >>

    > > > >

    > > >

    > >

    > 
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    > > > > >>

    > > > > >> On Mon, Jul 20, 2020, 9:17 AM <lauradi rcn com> wrote:

    > > > > >>

    > > > > >>> They have done a good job with this list. The 
Change-ringing

    > online

    > > > > group

    > > > > >>> has had a lot of stuff as well, including a long thread 
called

    > > > > staircases,

    > > > > >>> which mentions the only one person touches stuff rule. The 
stairs

    > > > (and

    > > > > at

    > > > > >>> the Advent, anteroom) don't leave room for distancing, so a

    > > > sequential

    > > > > >>> arrival would be needed, with the first person up opening

    > windows.

    > > > > >>> The ringers at Chelmsford Cathedral UK have been posting 
videos

    > of

    > > > > their

    > > > > >>> return

    > > > > >>> The one from the 12th had distance, no mask, and an open 
window

    > > > > >>> 
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    > > > > >>> In yesterday's video, one couldn't even see an open 
window, but

    > > there

    > > > > >>> might have been one elsewhere in the room

    > > > > >>>

    > > > > >>> 
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    > > > > >>>

    > > > > >>> I would want distance, masks, and open windows (I presume 
that

    > will

    > > > be

    > > > > >>> true for me even in January). I think we could agree on 
methods

    > in

    > > > > advance

    > > > > >>> by email, if people don't think a lot of conducting is 
safe. As

    > > > > Danielle

    > > > > >>> mentioned, we'd need to register at the Advent. Even if 
we're not

    > > > > attending

    > > > > >>> the service, we'd be sharing the space.

    > > > > >>> 
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    > > > > >>>

    > > > > >>>

    > > > > >>> I'll be interested to see how Old North does with the 
tourists,

    > > > before

    > > > > >>> worshippers start showing up again in September.

    > > > > >>>

    > > > > >>>

    > > > > >>> Laura Dickerson

    > > > > >>>

    > > > > >>> ----- Original Message -----

    > > > > >>>

    > > > > >>> From: "Edward Futcher via Boston-change-ringers" <

    > > > > >>> boston-change-ringers cosmos phy tufts edu>

    > > > > >>> To: "Bcr" <boston-change-ringers cosmos phy tufts edu>

    > > > > >>> Sent: Monday, July 20, 2020 6:01:15 AM

    > > > > >>> Subject: Starting ringing

    > > > > >>>

    > > > > >>> The list of items below has been given some thought by the 
DC

    > > > ringers.

    > > > > >>> Some items are not applicable to Boston ringing, but this 
might

    > be

    > > a

    > > > > good

    > > > > >>> starting point for a discussion in Boston.

    > > > > >>>

    > > > > >>> Ed

    > > > > >>>

    > > > > >>>

    > > > > >>> Sent from Mail for Windows 10

    > > > > >>>

    > > > > >>> From: Robert Bannister

    > > > > >>> Sent: Sunday, July 19, 2020 9:12 AM

    > > > > >>> To: WRSList Groups io

    > > > > >>> Subject: [WRS] PLEASE RESPOND re: safety measures

    > > > > >>>

    > > > > >>> Hi, all. Thanks to all who participated in the discussion

    > following

    > > > > >>> practice Tuesday night regarding the draft list of safety

    > measures.

    > > > > After

    > > > > >>> further back and forth among the officers, we landed on the

    > revised

    > > > > list

    > > > > >>> below. Please reply to me by this Wednesday night (July 
22) as to

    > > > > whether

    > > > > >>> you’d be interested in participating in Sunday service 
ringing

    > with

    > > > > these

    > > > > >>> safety measures in place. Your response doesn’t obligate 
you one

    > > way

    > > > > or the

    > > > > >>> other. You can change your mind later. And keep in mind 
that the

    > > > safety

    > > > > >>> measure may need to be updated to conform with Cathedral

    > reopening

    > > > > >>> protocols once those are developed and provided to us. 
However,

    > we

    > > > are

    > > > > >>> trying to understand if enough ringers are interested in a 
return

    > > to

    > > > > Sunday

    > > > > >>> service ringing with these measures in place before we 
present

    > them

    > > > to

    > > > > the

    > > > > >>> Cathedral, so please do give your response some thought 
before

    > > > > responding.

    > > > > >>>

    > > > > >>> Thanks,

    > > > > >>> Rob

    > > > > >>>

    > > > > >>> • Inspect the bells and ropes to ensure they’re safe to 
ring

    > > > > >>> • Anyone with an elevated temperature or otherwise feeling 
unwell

    > > > must

    > > > > not

    > > > > >>> participate. Likewise, anyone with Covid symptoms or who 
has

    > tested

    > > > > >>> positive or been in contact with anyone with symptoms, 
must not

    > > > > participate

    > > > > >>> until they have self-isolated for 2 weeks.

    > > > > >>> • No visitors

    > > > > >>> • Limit frequency of ringing to Sunday service ringing 
only (at

    > > least

    > > > > >>> initially)

    > > > > >>> • Limit the duration of ringing to 15-30 minutes

    > > > > >>> • Limit the number of bells rung initially to enforce 
social

    > > > distancing

    > > > > >>> while ringing (probably no more than 5 non-adjacent bells)

    > > > > >>> • Limit the number of ringers in the ringing room (just 
enough to

    > > > ring)

    > > > > >>> • Keep ringers on same ropes for entire session (including

    > ringing

    > > up

    > > > > and

    > > > > >>> down)

    > > > > >>> • Accessing the ringing room

    > > > > >>> o When ascending to and descending from the overcroft 
level, no

    > > more

    > > > > than

    > > > > >>> 2 people will ride the elevator together

    > > > > >>> o When using the central tower elevator, only 1 person 
will ride

    > > the

    > > > > >>> elevator per trip

    > > > > >>> o When using the spiral staircase, leave ample time and 
space

    > > between

    > > > > >>> ascents/descents

    > > > > >>> • Either open the windows or run the HVAC system to 
maximize air

    > > > > >>> circulation based on prevailing weather conditions

    > > > > >>> • Wear face masks upon entering the Cathedral and at all 
times

    > when

    > > > in

    > > > > the

    > > > > >>> tower, including while ringing

    > > > > >>> • Wash hands with soap and water before/after ringing and 
keep

    > hand

    > > > > >>> sanitizer in the ringing room

    > > > > >>> • Avoid shouting (e.g., by ringing plain courses of simple

    > methods)

    > > > > >>> • Minimize sharing of items

    > > > > >>> o Assign only one person to turn on/off lights, open/close

   > windows,

    > > > > etc.

    > > > > >>> o Assign same person for removal/replacement of silencer 
for

    > given

    > > > > bell(s)

    > > > > >>> o Minimize handling of items in the ringing room (e.g., 
limit use

    > > of

    > > > > water

    > > > > >>> cooler)

    > > > > >>> • Maintain record of ringers who have been in the ringing 
chamber

    > > to

    > > > > >>> assist with contact tracing if the need arises

    > > > > >>> • Adjust protocols to comply with Cathedral’s if 
Cathedral’s are

    > > more

    > > > > >>> restrictive

    > > > > >>> _._,_._,_

    > > > > >>>

    > > > > >>> -------------- next part --------------

    > > > > >>> An HTML attachment was scrubbed...

    > > > > >>> URL: <

    > > > > >>>

    > > > >

    > > >

    > >

    > 
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    > > > > >

    > > > > >>>

    > > > > >>> _______________________________________________

    > > > > >>> Boston-change-ringers mailing list

    > > > > >>> Boston-change-ringers cosmos phy tufts edu

    > > > > >>>

    > > 
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    > > > > >>>

    > > > > >>> -------------- next part --------------

    > > > > >>> An HTML attachment was scrubbed...

    > > > > >>> URL: <

    > > > > >>>

    > > > >

    > > >

    > >

    > 
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