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A dramatic warning was issued by Centers for Disease Control and Prevention (CDC) have updated their guidelines for Covid-19 disease, stating that it can sometimes airborne.
According to the announcement, some infections may be due to exposure to the virus in droplets or aerosols staying on the gas from a few minutes to hours.
This update acknowledges published reports that there were some limited and unusual circumstances in which people infected with Covid-19 infected others while at a distance. greater than the measurements between them or that some became infected shortly after a coronavirus-positive person left the site.
In these cases, the CDC noted that the transmission had been made indoors poorly ventilated where activities were performed that make people breathe hard (for example, singing or playing sports).
Last month, the CDC posted a directive on its website, but downloaded it almost immediately, citing a possible airborne transmission of the coronavirus.
Worrying investigations about the coronavirus: there is even half an hour left in the elevator
The spread of the coronavirus through the air had been very busy during the first wave of the pandemic in the spring, generating serious concerns and controversy in the scientific community. Investigation of University of Amsterdam reinforces the theory that the virus wants to be transmitted through the air.
According to the study, coronavirus particles from coughing or talking circulate in the elevator even for half an hour after the doors are closed, time that falls in 12-18 minutes when the elevator is operating at its normal frequency.
The research was published in the journal “International Journal of Indoor Health and Environment” it was performed after an experiment in a hospital elevator. So, with the elevator doors closed, the coronavirus lives in the elevator atmosphere even half an hour later.
While with the doors open, the drops disappear afterwards 2-4 minutes.
In shared elevator conditions, with doors that open and close frequently, contaminated particles caused by coughing or talking last approximately 12-18 minutes.
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