Home Chinese Virus Scientists disagree, but "be kind" anyway.

Scientists disagree, but “be kind” anyway.

Author

Date

Category

COVID-19 social distancing rule is outdated, scientists claim

The strict social distancing rule of standing one metre from others during the coronavirus pandemic is outdated, claim UK scientists.

That’s because it doesn’t account for the ways respiratory droplets can travel in different environments.

The researchers, from the University of Oxford, said when people cough and shout, droplets can fly more than two metres – and even spread up to eight metres in exhaled air.

In a study published in the prestigious BMJ, they argued that social distancing rules should be updated to account for multiple risk factors, like indoor versus outdoor settings, ventilation, types of activity, and whether or not people are wearing masks.

For example, if you’re in a high-risk situation like a crowded bar or a nightclub, it would be wise to stand further than two metres away from others and to limit your time in that place.

In other lower-risk circumstances, like when you’re at a park or beach, less stringent distancing is likely to be enough.

Nicholas James, who co-authored the study, said the one-metre rule was based on over-simplified science that described the viral transfer of COVID-19 by either large droplets or small airborne droplets emitted in isolation, and without accounting for the exhaled air.

In reality, transmission of the virus was more complex, researchers said.

The virus’s spread depended on a variety of factors, including the difference in droplet sizes, viral load, duration of exposure, and the susceptibility of an individual to infection.

“Instead of single, fixed physical distance rules, we propose graded recommendations that better reflect the multiple factors that combine to determine risk,” they wrote.

“This would provide greater protection in the highest-risk settings but also greater freedom in lower-risk settings, potentially enabling a return towards normality in some aspects of social and economic life.”

The researchers said further work was required to decide how to best extend the social distancing rules to cater for different environments.

“Physical distancing should be seen as only one part of a wider public health approach to containing the COVID-19 pandemic,” they said.

“It should be used in combination with other strategies to reduce transmission risk, including hand washing, regular surface cleaning, protective equipment and face coverings where appropriate, strategies of air hygiene, and isolation of affected individuals.”

Previous articleShe’s alive!
Next articleHave Your Say

3 COMMENTS

  1. Alfies wife grant is lying through his teeth today ,the most used term has been “we’ll have to get back to you on that”.
    Not sure about the 3 pies woods clone but she seems very shifty as well ,will the truth about this CLUSTERfuck Covid response ever come out?
    12 new cases today and we are still going back to level two on monday WTF,why did we ever go there in the 1st place unless the motorway roadblocks are still going to be there next week because its still in the community and now there are dozens of Pacifica people that have just dematerialised and can’t be located.

    4

    0

    • Would one be called a wracist if one said these missing PI’s are overstayers who would rather spread the Chinese flu than be caught and sent home? I know the chances of that under the COL are next to impossible, with a PI as minister, but someone needs to tell them not to worry and stop hiding. Take one for the team of 5 million and do the right thing.

      2

      0

Comments are closed.

Recent posts

Putting People First

The Great Reset after COVID-19 must put people first Amol Mehra COVID-19 has exposed many underlying structural and institutional inequalities. • Social movements are pushing for action...

No wonder the Dems are running scared

Trump Pushing to Revive Firing Squads and Electrocution as Feds Ramp Up Executions By Elias Marat: While the final 50 days of a president’s tenure are...

Build Back Better

To build back better, we must reinvent capitalism. Here's how: Peter Bakker The pandemic has brought into focus many of the vulnerabilities in our systems...

Recent comments

Rachael Membery on Have Your Say
Saggy on Have Your Say
Saggy on Have Your Say
Rachael Membery on Have Your Say
Rachael Membery on Have Your Say
waikatogirl on Have Your Say
Simpleton1 on Have Your Say
waikatogirl on Have Your Say

The way we all feel about this useless government

Hamilton
clear sky
16.7 ° C
16.7 °
16.7 °
70 %
5.8kmh
7 %
Sat
13 °
Sun
19 °
Mon
18 °
Tue
22 °
Wed
22 °
NZD - New Zealand Dollar
USD
1.4248
EUR
1.7046
AUD
1.0525
CAD
1.0964
GBP
1.8960
JPY
0.0137
CNY
0.2166
INR
0.0193