Newsgroup: it.sport.calcio.milan
Titolo: [OT] nuovo studio NIH su COVID-19

https://www.nih.gov/news-events/news-releases/new-coronavirus-stable-hours-surfaces
 
 
New coronavirus stable for hours on surfaces
SARS-CoV-2 stability similar to original SARS virus.
 
What
The virus that causes coronavirus disease 2019 (COVID-19) is stable for 
several hours to days in aerosols and on surfaces, according to a new study 
from National Institutes of Health, CDC, UCLA and Princeton University 
scientists in The New England Journal of Medicine. The scientists found that 
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was detectable 
in aerosols for up to three hours, up to four hours on copper, up to 24 
hours on cardboard and up to two to three days on plastic and stainless 
steel. The results provide key information about the stability of 
SARS-CoV-2, which causes COVID-19 disease, and suggests that people may 
acquire the virus through the air and after touching contaminated objects. 
The study information was widely shared during the past two weeks after the 
researchers placed the contents on a preprint server to quickly share their 
data with colleagues.
 
The NIH scientists, from the National Institute of Allergy and Infectious 
Diseases’ Montana facility at Rocky Mountain Laboratories, compared how the 
environment affects SARS-CoV-2 and SARS-CoV-1, which causes SARS. 
SARS-CoV-1, like its successor now circulating across the globe, emerged 
from China and infected more than 8,000 people in 2002 and 2003. SARS-CoV-1 
was eradicated by intensive contact tracing and case isolation measures and 
no cases have been detected since 2004. SARS-CoV-1 is the human coronavirus 
most closely related to SARS-CoV-2. In the stability study the two viruses 
behaved similarly, which unfortunately fails to explain why COVID-19 has 
become a much larger outbreak.
 
The NIH study attempted to mimic virus being deposited from an infected 
person onto everyday surfaces in a household or hospital setting, such as 
through coughing or touching objects. The scientists then investigated how 
long the virus remained infectious on these surfaces.
 
The scientists highlighted additional observations from their study:
 
If the viability of the two coronaviruses is similar, why is SARS-CoV-2 
resulting in more cases? Emerging evidence suggests that people infected 
with SARS-CoV-2 might be spreading virus without recognizing, or prior to 
recognizing, symptoms. This would make disease control measures that were 
effective against SARS-CoV-1 less effective against its successor.
In contrast to SARS-CoV-1, most secondary cases of virus transmission of 
SARS-CoV-2 appear to be occurring in community settings rather than 
healthcare settings.  However, healthcare settings are also vulnerable to 
the introduction and spread of SARS-CoV-2, and the stability of SARS-CoV-2 
in aerosols and on surfaces likely contributes to transmission of the virus 
in healthcare settings.
The findings affirm the guidance from public health professionals to use 
precautions similar to those for influenza and other respiratory viruses to 
prevent the spread of SARS-CoV-2:
 
Avoid close contact with people who are sick.
Avoid touching your eyes, nose, and mouth.
Stay home when you are sick.
Cover your cough or sneeze with a tissue, then throw the tissue in the 
trash.
Clean and disinfect frequently touched objects and surfaces using a regular 
household cleaning spray or wipe. 
 

 household cleaning spray or wipe. 
 
accidenti! è una teoria rivoluzionaria!
finalmente qualcuno che dice le cose come stanno: stare lontano da chi è
malato, non toccarsi occhi bocca e naso, non tossire e starnutire in faccia
agli altri e mantenere tutto pulito!
era ora che qualcuno ne parlasse 
 
 
 
-- 
R. Saclà

accidenti! è una teoria rivoluzionaria!
 
purtroppo l'evidenza sperimentale di quello studio e' ben piu' grave... 
 

purtroppo l'evidenza sperimentale di quello studio e' ben piu' grave...
 
qui si vedono piu' dettagli di quello studio:
 
https://www.nejm.org/doi/10.1056/NEJMc2004973
 
 

 

ma sono le conclusioni comportamentali a rivelarsi come sconvolgenti
novità!
 
-- 
R. Saclà

novità!
 
proprio non capisci...
prova a leggere l'altro link 
 

 

Infine, i comportamenti da seguire sono quelli descritti. Ah, se l’avessimo
saputo prima
 
-- 
R. Saclà

saputo prima
 
sei proprio limitato... 
 

 

Lavati le mani! Lo so, notizia nuova (come il fatto che il virus resista
sulle superifici), ma pare che aiuti!
 
-- 
R. Saclà

 ma pare che aiuti!
 
Sicuro?
Link!
 
 

la cosa interessante è il grafico, dove mostra la durata a differenza dei diversi ambienti.
Tra aereosol dove dura 3 ore e plastica dove dura 80 ore ( probabilmente a causa della microrugosità della stessa?).
Sarebbe stato interessante avere il tempo su argento che è un noto biocida naturale.


Non so se metterlo. Non vorrei sconvolgere con rivoluzioni copernicane. 
 
-- 
R. Saclà

news:82b008ce-6045-4044...@googlegroups.com...

finalmente qualcuno che apre gli occhi su quanto questo studio di due giorni 
fa comunica... 
 

 fa comunica...
 
Fidati è interessante. L'ho appena girato ai colleghi. Primo perché viene 
dal new england e secondo perché su tempi di permanenza, su diverse 
superfici, non c'e (non c'era) comunità di vedute.
grazie

grazie
 
a breve dovrebbero pubblicare dati anche per altri tipi di superfici...