The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.
Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.
According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.
She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.
However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.
Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.
"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.
"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.
The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.
"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study
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Muslim organisations felicitate State BJP Chief Nalin Kumar
I want to know from them wat was the need for this. Has this helped the ordinary Mangalore Muslims in anyway. I would not have asked abt this if the program was conducted in your house. But here it is done in the name of Muslims. We need to stop being intellectually dishonest
Young energetic Muslim brothers present in Dk ,please note we need young leaders to lead us . Wake up ... and take over .
We respect ur decision sir.
But there are a lot of questions about it on people's mind.
We need to be updated about ur next plan of action.
Are u planning to approach the court for gaining the permission from the police, bcoz otherwise I don't think we will get the permission
Secondly, a few days back I wanted to contact Muslim central committee office to confirm if the protest Wil be there. I googled for the no, but the no. did not exist. Does that mean the Muslim central committee does not have an office or telephone no????
This only shows how organised we are.
Requesting Muslim central committee to get their house in order. Get more professional. Also consult people to utilise various platform to responsibly collect funds from so many ordinary bearys who want to donate money, but don't know whom to send it to.
We need an action committee to handle such situations. It must consist a battery of lawyers to fight the cases filed by the police.
If our leaders are old, they need to groom new leaders into the committee.
Moreover, it is important to question these so called leaders about their fecilitation program conducted for making kateel wen he won the election. Wat was the purpose of such fecilitation. Becoz I don't think he gives a damn when our community suffered. I question, whether all this is done in our name only to gain your contact and flourish ur business???
Never ever dare to do so in the name of Muslims
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