PhD physical chemistry: surface forces, wetting, rheology, thin‑film dynamics, air–liquid–solid interfaces.
Public governor NHS Hospital.
Aerosol transmission of SARSCoV2 virus is the dominant route for transmitting COVID-19.
💨 mstdn.science/@JoePajak
@DrJoePajak CSci CChem FRSC
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Experts warn that mass‑gathering events like the World Cup amplify 'diseases of crowds' — from measles and flu to COVID‑19 and norovirus.
Airborne pathogens linger, spread silently, and thrive in packed indoor spaces.
Vigilance still matters.
🔗 @cidrap.bsky.social
www.cidrap.umn.edu/influenza-ge...
Mass‑gathering risks don’t stop at stadiums.
In the UK, long waits and corridor care mean A&E departments could become 'diseases‑of‑crowds' settings too?
Crowding increases exposure risk.
CIDRAP: www.cidrap.umn.edu/influenza-ge...
NHS England corridor‑care data: www.england.nhs.uk/statistics/s...
Outdoors generally safest: aerosols disperse into huge volumes.
Indoors, viral quanta accumulate if emission > than removal.
Poor mixing, low ventilation, slow deposition raise concentration.
Infection risk tracks inhaled dose, dilution cuts dose.
👉 @royalsociety.org
royalsociety.org/blog/2022/02...
Better ventilation matters too.
Being outdoors — or indoors with clean, moving air — reduces the risk of spreading airborne pathogens.
Fresh air dilutes viral particles, lowering exposure in crowded settings, including emergency departments.
UKHSA ventilation guidance: www.gov.uk/government/p...
@DrJoePajak CSci CChem FRSC
England’s COVID numbers remain low, but transmission persists. With fewer metrics now published — and bank holidays still delaying updates — this independent chart shows the trend clearly.
Remember that airborne pathogens spread silently, and Long COVID’s dire impacts remain poorly understood.
Outdoors is safest: aerosols disperse into a near‑infinite volume.
Indoors, viral quanta build up as people exhale into limited airspace.
Risk rises with emission rate, poor mixing, low ventilation and time.
Dilution lowers dose — and dose drives infection.
See this info:
www.gov.uk/guidance/ven...
When official data shows sustained crowding and prolonged exposure in constrained spaces, safety frameworks must surely recognise airborne hazards?
Without explicit airborne pathways, reporting systems can’t capture real‑world risk.
www.england.nhs.uk/statistics/s...
So, fresh air still matters.
Being outdoors — and not in crowded spaces — is usually the safest option for reducing airborne transmission.
When indoors, good ventilation helps dilute viral particles and lower exposure risk.
GOV.UK ventilation guidance: www.gov.uk/guidance/ven...
A new Interface Focus issue highlights the role of aerosol transmission in the spread of COVID-19.
People who received flu shots 40% less likely to test positive for influenza, new data show
Study finds flu shots are also associated with ⬇️ lower risk of death among older adults.
Read more: ow.ly/wWWu50ZaH95
@DrJoePajak CSci CChem FRSC
Guidance on the ventilation of indoor spaces to reduce the spread of respiratory infections, including coronavirus (COVID-19).
Matt Discombe, @hsj.co.uk, notes 90,000 corridor‑care cases in May, based on NHS England data.
When the system is under this level of strain, crowded / poorly ventilated spaces become unavoidable, increasing airborne exposure risk. Guidance still omits airborne hazards.
www.hsj.co.uk/quality-and-...
More than 90,000 cases of corridor care were recorded in English NHS hospitals in May - an average of 3,000 per day - according to the first official stats on the scale of the problem.
