Health and prevention. Pollution, causes and effects of environmental hazardsCan the Covid19 be (semi) airborne via particles (pollution, pollens, fog ...)?

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Christophe
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Can the Covid19 be (semi) airborne via particles (pollution, pollens, fog ...)?

Unread Messageby Christophe » 25/03/20, 19:16

Following the information developed here for 2 days: Health-pollution-prevention / the-transmission-to-person-of-2019-Sxy-is-PROVED t16285-570.html # p386267 I create this subject ONLY dedicated to the aerial propagation of COVID19

Please respect this instruction!

Summary, following the publication of this article: https://www.levif.be/actualite/sante/le ... 67991.html

An Italian study http://www.simaonlus.it/wpsima/wp-conte ... azione.pdf has shown that Coronavirus is transmitted, a priori, more rapidly in areas polluted with particles.

Screenshot_2020-03-27 Can the Covid19 be (semi) air via particles (pollution, pollens, fog) .png
Screenshot_2020-03-27 Can the Covid19 be (semi) air via particles (pollution, pollens, fog) .png (399.58 KiB) Viewed 1316 times


It is therefore possible that the Covid-19 can "fly" as long as it finds a support (particles, pollens ... and even fog ?? And in a humid environment the Covid19 can resist for several DAYS!) .. . Contrary to all that has been said so far: the barrier gestures, in this case, are insufficient and a protective mask which filters the finest atmospheric particles would be the only protection possible.

The problem is that there are no other studies ... yet on this subject!

The pollen season is coming ... and if the Covid-19 can attach itself to the pollens then, let's study the worst, in the clouds (fog) then there we are bad ...

Positive point: allergens to pollen would be preferred because they naturally detect pollen concentrations!

ps: in the benefit of the doubt, it would also be desirable, as of today to cut all the ventilation systems of public places ... because dust particles there are ... everywhere and if they are brewed by the people on the move and mechanical ventilation systems, it's not great ...
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby sicetaitsimple » 25/03/20, 19:36

Christophe wrote: ONLY dedicated to the air propagation of COVID19 [/ b] Please thank you for respecting this instruction!


Yes, okay, airborne. This is different from transmission and its mechanisms, although it can of course contribute to it.
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby Christophe » 25/03/20, 19:48

Indeed the viral load via the air propagation will necessarily be low ... But contamination all the same there will be ...

Say see, am not a self-proclaimed infectious disease specialist (eh Did67), but wouldn't that be a way to explain the many asymptomatic cases of Covid?

Given its resistance, exceptional for a virus (I just learned that it could last 3 DAYS on plastics !!), I think more and more that 100% of humanity will be contaminated by covid ... term...
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby ENERC » 25/03/20, 19:49

Any particle can be contaminated with a virus on its surface.

For example this article in English on the flu: http://www.cidrap.umn.edu/news-perspect ... hs-sneezes or this very theoretical article: https://www.nature.com/articles/s41598-019-38825-y

Then it's a question of dose:
- when we cough we are in particles from 10 to 100 µm
- dust is within 2-10 µm

The other difference is that on one side it is in volume and the other on the surface. The amount of virus is probably several billion times greater in a droplet than a dust.

I think the Italian data show that when your lungs are well rotten from pollution, you have complications more easily (and the air is well polluted in Lombardy).
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby Christophe » 25/03/20, 19:51

Good remark enerc, this joins mine on the viral load (we posted at the same time) ...

ENERC wrote:I think the Italian data show that when your lungs are well rotten from pollution, you have complications more easily (and the air is well polluted in Lombardy).


Are there any studies (or at least info) on smokers and corona?
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby GuyGadebois » 25/03/20, 20:26

Christophe wrote:Good remark enerc, this joins mine on the viral load (we posted at the same time) ...

ENERC wrote:I think the Italian data show that when your lungs are well rotten from pollution, you have complications more easily (and the air is well polluted in Lombardy).


Are there any studies (or at least info) on smokers and corona?

(translated)

What are the possible relationships between smoking and the COVID19 epidemic?

Any type of smoking is harmful to the body systems, including the cardiovascular and respiratory systems [1] [2]. COVID-19 can also damage these systems. Reports from China, where COVID-19 originates, show that people with cardiovascular and respiratory diseases caused by smoking or otherwise are at higher risk of developing serious symptoms of COVID-19 [3 ]. Research on 55 laboratory-confirmed cases in China shows that the crude death rate for patients with COVID-924 is much higher in people with cardiovascular disease, diabetes, hypertension, chronic respiratory disease or than those without a preexisting chronic disease [19]. This demonstrates that these pre-existing conditions can help increase the sensitivity of these people to Covid-4.

http://translate.google.com/translate?h ... ction.html

And:
Based on some pre-published preliminary studies and the known health consequences of smoking, it seems that smoking or vaping likely increases the risk of developing a severe form of Covid-19.

Few studies have found a correlation between smoking and the onset of a severe form of Covid-19. Only a few prepublished Chinese studies (therefore, not peer reviewed yet) report, using preliminary data, an increased risk of developing pneumonia if one is a smoker. In addition, if we look at the effects of cigarettes and e-cigarettes on the respiratory system, we can judge it very likely that smokers are a population at risk. An article in the popular science journal Scientific American helps us take stock.
Immunosuppression and inflammation

Inhaling smoke from a cigarette or an e-cigarette (the data and the hindsight are still more robust concerning the traditional cigarette) leads gradually to a depletion of the immune cells within the lungs. It also exacerbates inflammation in the area. These two parameters are very explicit. Indeed, if the immune system is weakened, it will fight less effectively against various pathogens.

Likewise, excessive and uncontrolled inflammation can cause considerable damage. An efficient immune system responds with a measured action to the pathogens that attack it. If it gets too carried away, it can lead, in some serious cases, to cytokine shock. We can hypothesize that an inflammation already strongly present in the area of ​​predilection of SARS-CoV-2 can favor this phenomenon.

https://www.futura-sciences.com/sante/a ... res-80144/
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby Christophe » 25/03/20, 22:46

That a heavy smoker has a better chance of dying from pneumonia we already knew ...

Yeah so nothing serious about it ...

I will be much more direct and pragmatic: put a foreign body in his mouth held by his fingers possibly infected ... necessarily the risk of infection is greater for smokers!

No scientific study is needed to understand this!
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby sicetaitsimple » 25/03/20, 22:58

Christophe wrote:I will be much more direct and pragmatic: put a foreign body in his mouth held by his fingers possibly infected ... necessarily the risk of infection is greater for smokers!P


You mean the smokers? .... Okay, I'm going to bed : roll: See you tomorrow.
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby Christophe » 25/03/20, 23:13

Liberation was talking about it yesterday and it's not a self-proclaimed infectious disease specialist who says so!

https://www.liberation.fr/planete/2020/ ... on_1782754

"The virus could be transported by pollution"

Vincent-Henri Peuch, director of the European Atmospheric Monitoring Service Copernicus, explains how research on the Covid-19 is now examining a possible transmission by suspended particles.


Although it is not his core business, Vincent-Henri Peuch is one of the many players in the scientific world who is trying to better understand the reality of the Covid-19 epidemic. The director of the Atmospheric Monitoring Service (Cams) of the European Earth observation program Copernicus explains to Liberation the scope of their work, in connection with the medical community. CAMS noted on March 18 a reduction of 10% per week in the concentrations of a pollutant, nitrogen dioxide on the surface, in northern Italy, since mid-February. And should publish in the coming days a map in real time of the evolution of the concentration of certain gases dangerous to humans, in Europe.

You are currently working with the World Health Organization and epidemiologists on the Covid-19. What is your part ?

Using our satellite observation and modeling tools, we provide them with data to determine whether fine particle pollution can be used as a vector for Covid-19. A study carried out by fifteen international researchers, and published on March 17 in The New England Journal of Medicine, concluded that this virus can remain hung for approximately three hours on fine particles in suspension, emitted inter alia by cars, l agriculture or industry. This would mean that it could be transported by pollution and contaminate over a long distance. WHO and the universities we work with are now investigating whether the virus, in its active phase, can survive on suspended particles. And for how long. This hypothesis, if confirmed, could explain, in part, the speed of propagation of the Covid-19. It may depend on humidity and temperature conditions.

If a reduction in air pollution could, if confirmed, be beneficial in limiting the epidemic?

All this is still only hypotheses. But if it's confirmed, yes. We could then decide to reduce certain specific sources of pollution. We are already observing the downward effect of containment measures on the emission of polluting gases, such as nitrogen dioxide and fine particles, on all Western European countries and in the United States, with a slight delay in the UK. But as these emissions are very dependent on seasonal variability and the weather, it takes a month of data to consider an evolution as robust.

You are also working on the link between the virus and pollen allergies…

It is clearly established that air pollution, even when extended to pollen, affects people through diseases such as asthma. With Covid-19, the question is now: would the dangerousness of the virus and its complications increase for patients allergic to pollen? It is a major issue. In Europe, 25% of the European population is sensitive to pollen. And we are at the peak of the production of birch pollen, one of the most allergenic.

How do you get your pollen data?

Air filters are taken and then passed through a microscope to count the pollen particles. Depending on the season, we know what species to expect. Information is obtained with a delay of three weeks.

How much should we expect to see greenhouse gas emissions drop?

It's hard to say. The problem with gases like carbon dioxide (CO2) or methane is that the background concentrations in the atmosphere are already very high. “Fresh” emissions represent only around 1% of the total. One of our axes of development, at Copernicus, is precisely to set up, in the coming years, a set of three satellites capable of measuring CO2 with sufficient precision to be able to determine how much is "fresh" or old.
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Re: Can Covid19 be (semi) air via particles (pollution, pollens, fog ...)?

Unread Messageby Leo Maximus » 26/03/20, 10:20

Christophe wrote:... protective mask which filters the finest atmospheric particles would be the only possible protection ...

Obviously.
Viruses "fly" thanks to micro droplets of mucus and cellular debris that are between 5 and 150 µm in diameter (G particles). The llp2 mask stops 100% of these particles.

I only have 2 llp2 masks, I gave the others. I buy it every year. I use it to protect myself from pollens in the spring. The rubber bands being of poor quality, they do not last long. But rather than throwing them away, I kept them in the attic, telling myself that it could one day be used ... :D , just change the elastic. You have to make sure that the valve works, it should be "cloc, cloc, cloc" when you breathe. The date is marked on: 2001 and 2009 : Lol:

llp2.JPG


Surgical cotton is sterile and stops particles even smaller than 5 µm. In our consumer society, we have forgotten that we can make a protective mask. We do not even imagine that its can be done.
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