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Orla Hegarty Profile picture
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22 Oct, 5 tweets, 2 min read
(rough maths) 100m long queue, say 200+ people.. & Ireland had ≈25,000 new cases in last 14 days (actual infection likely 3x that).. so say 1.5% of population is currently infectious with #Covid19… the odds are 3+ people in this queue are infectious tonight 1/
… ONE PERSON who may be fully vaccinated & have no symptoms.. breaths out 72,000 copies of the virus in one hour… & vaccines give 50-90% protection from infection. Do the maths
..& unless the place has clean air (ventilation & filtration) super-spread can happen

France, nightclub
72 infections

“supermarket worker partied at nightspot (that skirted ban by blocking off its dance floor)”
apnews.com/article/virus-…
previously on (rough maths socialising)
*could be 400 in queue (6 infectious) & not 200 (3 infectious)

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More from @Orla_Hegarty

Orla Hegarty Profile picture
24 Oct
So Dr @ClionaNi was right..
“I would probably bet that most kids in Ireland under 12 will get Covid before the spring, the way we are going on now” (12 Sept)

Urgent action is needed to protect children & to stop spread in schools
‘Most children under the age of 12 in Ireland will contract Covid-19 by early 2022, unless schools are made safer – infectious disease specialist’ independent.ie/irish-news/hea…
Ireland is following a flawed, unsafe & immoral UK political strategy of not protecting children (in breach of their human rights, & with #NoConsent from their parents)
Read 6 tweets
Orla Hegarty Profile picture
23 Oct
Re: #Covid19 #Nightclubs #Coppers

Safer spaces should be re-purposed so that people can socialise at low risk. Crowding into basements & rooms with low ceilings is unnecessary & unsafe

Risk of super-spread is not about people, it’s about *places* 1/
Here’s a design idea from more than a year ago 2/
Some spacious places ~with high ceilings~ could be low risk by managing the number of people (yes, it can be calculated)

Some places are designed for high rates of ventilation, as smoke extraction (yes, this can be calculated too)

Some places that can add HEPA filtration 3/
Read 16 tweets
Orla Hegarty Profile picture
22 Oct
When people “object” to #housing.. look closely at the housing..
*deregulated space standards
*deregulated fire safety
*deregulated building heights
*deregulated ventilation & daylight
*deregulated amenities Image
relying on smoke seals on *one* door to stop a kitchen fire filling the corridor with smoke ..& compromising the escape of up to 10 families.. & the building is not designed for ladder rescue, if the corridor isn’t safe… Image
More than 40 families on this floor will be sharing 4 lifts with the families on 8 other floors

3,000+ people will be living on 5 hectares (14 acres)

Planning permission granted, ready-to-go in Dublin 7

Sales prices €450,000+
or “affordable” with public subsidy at €350,000
Read 4 tweets
Orla Hegarty Profile picture
16 Oct
🇮🇪HSE #Covid19 information is unscientific & unsafe. People are at risk of infection due to misleading, contradictory & out-of-date advice 1/

✅Covid19 is MOSTLY spread by aerosols from breathing & talking, NOT droplets from coughs & sneezes

✅Aerosols linger & spread >2m
✅ ‘social distancing’ of 2m is NOT a protection indoors, everyone breaths the same air

✅ virus can fill rooms & linger for hours in EMPTY rooms/lifts/vehicles

✅ risk from touching surfaces/hands/eyes is LOW

✅ respiratory virus are almost always INHALED by infected air 2/
✅ ventilation & filtration are critically important in ALL buildings & vehicles, whether crowded or not
✅ crowded indoor spaces are unsafe BEYOND 2M DISTANCE
✅ wear a mask EVERYWHERE INDOORS that isn’t your home
✅ cough & sneeze INTO YOUR MASK
✅ NORMAL cleaning is fine 3/
Read 10 tweets
Orla Hegarty Profile picture
15 Oct
COVID IS NOT SPREAD ON HANDS*

Lungs have the surface area of tennis court & virus is inhaled in infected air

Telling people to wash hands to prevent a respiratory pandemic is negligence

*CDC: 1 in 10,000 risk from a touch, so possible but very unlikely
People can be infected an EMPTY ROOM
People can be infected 8 METRES away aljazeera.com/economy/2020/7…
Read 14 tweets
Orla Hegarty Profile picture
14 Oct
Prof @PhilipNolan_MU on @TodaywithClaire “we are not surprised, it was a possibility… we have had this “event” where cases went from 1100 to 1600/day.. it’s rapidly evolving.. the first indication was last Friday (from Wed swabs) & positivity % has increased” #Covid19
“Proportionally more infections are middle age & older adults now.. & requiring hospitalisation”
“we are unlikely to see major surge (due to vaccination).. but it’s on a knife edge” ..“we need to encourage & support vaccination”..2/3 in ICU are unvaccinated”
“we don’t know if this is a transient event or a step change that will stay at new level.. we are worried given (high) positivity rate” ... “vaccines offer 90% protection against hospitalisation”
Read 6 tweets

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