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Orla Hegarty Profile picture
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21 Jan, 6 tweets, 4 min read
#Covid19 What’s happening in #NursingHomes in Lockdown since 30 Dec?

737 new cases (150 open outbreaks) 16 Jan

311 new (112 open) 9 Jan
65 new (64 open) 2 Jan
146 new (47 open) 26 Dec
118 new (37 open) 19 Dec
34 new (4 open) 12 Dec
irishtimes.com/news/health/de…
update: now 165 open outbreaks... more than 1 in 4 of ~all~ nursing homes currently have an outbreak

& 1 in 25 of ~all~ residents in #NursingHomes have died since March 2020

precautions are not being taken to stop airborne spread
irishexaminer.com/news/arid-4021…
research pre-covid: ‘in study, only 19% had adequate ventilation.. more respiratory outcomes were observed in relation to poor ventilation... & more pronounced effect of indoor air pollution in elderly living in poorly ventilated nursing homes’ erj.ersjournals.com/content/45/5/1…
ECDC advice: ‘ventilation plays key role for the prevention of respiratory infections in healthcare settings.. min number of air exchanges per hour, in accordance with regs, should be ensured at all times’ @ECDC_EU ecdc.europa.eu/sites/default/…
research Scotland govt:
‘confined & enclosed spaces with poor ventilation.. many care homes are high risk settings in this context.. #ventilation guidance should be considered nationally to mitigate risks re aerosols over the winter months in care homes’ gov.scot/publications/r…
WHO: ‘ventilation important to reduce #Covid19.. can reduce spread in indoor spaces by diluting concentration of potentially infectious aerosols. Residents’ rooms & common areas should be well ventilated with large quantities of fresh & clean air’ @CcoHse
apps.who.int/iris/bitstream…

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More from @Orla_Hegarty

Orla Hegarty Profile picture
23 Jan
[Thread] Learning from #COVID19 #superspread

🇺🇸USA Skagit Choir practice: 1 person with mild symptoms, 2.5-hours indoors, 50 infected, 2 deaths

“you can be inhaling what someone else exhaled even if they are far away from you” 1/ colorado.edu/today/2020/09/…
🇰🇷 South Korea, restaurant #Covid19 #superspread

CCTV shows 1 person infected another seated 6 metres away within 5 mins

“person was seated near a ceiling-type air conditioner, which blew virus droplets” 2/verywellhealth.com/air-flow-covid…
🇩🇪 Germany, meat factory #Covid19 #superspread

1,500 workers infected, indoors at 10°C low humidity

“Cold & stale air conditions allowed coronavirus particles to travel more than 8 meters” 3/
bloomberg.com/news/articles/…
Read 11 tweets
Orla Hegarty Profile picture
21 Jan
#Covid19 cases that ‘leak’ out of quarantine hotels are most likely due to failure to take #airborne precautions in buildings & transportation @NICU_doc_salone @drivetimerte
abc.net.au/news/2020-12-1…
‘testing indicated the hotel cleaner's infection was acquired from American airline staff’
smh.com.au/national/nsw/n…
‘civic leaders rightly focus on the hotel aspect of quarantine process improvement... there has been limited attention paid to the transport of these potentially infectious high-risk overseas arrivals’ theage.com.au/national/victo…
Read 6 tweets
Orla Hegarty Profile picture
9 Jan
[Thread] #Covid19 Indoor dining super-spread

‘Eleven of the 37 patrons who dined at the Smile Buffalo Thai restaurant on the night of December 21 tested positive to the virus, after visiting between 7pm & 9.30pm’ 1/
theage.com.au/national/victo…
‘virus can spread more than three times the six-foot (2m) range in just five minutes

Two diners were infected with Covid-19 from a third, asymptomatic diner who sat 21 feet (6.4m) away’ 2/ forbes.com/sites/suzanner…
‘one restaurant in Cork was the starting point of a cluster that has caused 57 Covid cases so far’

‘We have to cut down the size of these clusters, we have to cut down socialisation if we are going to get on top of this disease’ - @ronan_glynn (1 Oct) 3/
irishexaminer.com/news/arid-4005…
Read 18 tweets
Orla Hegarty Profile picture
9 Jan
Outbreaks in food processing is due to building operation for energy efficiency/cost saving by recirculating cold, dry air

In a German meat plant transmission was recorded at 8m.. so they fixed the ventilation

High risk indoor conditions are ~all~ preventable @SamuelMcConkey1
‘Cold and stale air conditions allowed coronavirus particles to travel more than 8 meters (26 feet) at a German slaughterhouse, a study showed, giving an insight into how meat plants turned into hotspots for infections across the world’
bloomberg.com/news/articles/…
2/3 of ~all~ workplace outbreak cases in Ireland have been in meat/poultry/fish processing plants (that’s fewer than 150 buildings)

6 outbreaks are currently open, range 3 to 72 cases in open outbreaks

In a Cork meat plant outbreak ~226~ were infected
hpsc.ie/a-z/respirator…
Read 4 tweets
Orla Hegarty Profile picture
7 Jan
Japan adopted “3 Cs” of #Covid19 prevention in February 2020

🦠 Avoid CLOSE contact situations, keep distance
🦠Avoid CROWDS, risks are higher
🦠Avoid CLOSED, poorly ventilated space, virus spreads like smoke indoors
😷 Wear MASKS

Science-based rules work Image
Japan (population 126 million) is now trying to control the ~latest wave~ of coronavirus, with cases running at record levels of 3,000 to 4,000 a day, of which about 1,000 are in Tokyo’

Ireland (pop 5 million) is currently close to 10,000 new cases a day irishtimes.com/news/world/asi…
Japan is in similar high risk environmental zone as Ireland (30-50° latitude, winter conditions 5-11°C with low absolute humidity) Image
Read 4 tweets
Orla Hegarty Profile picture
7 Jan
So Ireland INCREASED coal burning in the middle of an ENVIRONMENTAL pandemic where air pollution makes both virus spread & respiratory illness WORSE.. because ‘two electricity lines exported electricity to Britain, where prices were higher’ #COVID19ireland
irishtimes.com/business/energ…
Moneypoint, Ireland’s largest electricity generating station, is coal burning & the countries largest emitter of greenhouse gases @ESBNetworks @EPAAirQuality

Moneypoint location & air quality on @BreezoMeter this morning (prevailing winds from south west) Image
Environmental conditions are really bad for #Covid19 spread this week- very low temperatures, low absolute humidity, light winds, high environmental pollution

This will not give #lockdown drop in cases of April/May

@BreezoMeter last night, many homes burning solid fuel in 0°C Image
Read 4 tweets

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