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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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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If you read the History of Meelad un Nabie (Sallallaho Alaih-e-Wassalam) The biggest and the most grand Meelad was celebrated by Allah Ta'ala so from where it became bidat to rejoice on the birth day of Our Beloved Prophrt Sallallaho Alaih-e-Wasalam)? Be happy dont cry bidah like the shaitaan.
Kind words/Kind behavior is for non Muslims/Momins not for the Munafiqs who oppose Mouludunnabi and ask for the proof to celebrate the Moulood, for those Munafiqs Allah Subhan wa Ta'ala has used some words in Quran Surah Al Qalam Verse 13
When Allah Almighty has used those words we are following the Quran there is no harm in using those words for a Munafiq.
Mr. Sayed Kaleem, please use kind words on one another....this is what it is lacking in Muslims....they think superior to one another....if you can try to convince others with your comments with nice words.....try to be a good person first....
Surah Al Ma'idah Verse 114
Surah Al Duha Verse 11
Surah Al Fatha Verse 28
Surah Al Saf Verse 6
Surah Touba Verse 128
Surah Aal E Imaran Verse 164
Surah Al Yunus Verse 57/58
Surah Al Anbiya Verse 107
O Blind , when did you read the Quran? Are you Munafiqs? go back to Quran search for the above ayas
There is no aya in Quraan or any hadeeth which says date or celebrate prophet's birthday. People who dont read tafseer of Quraan do this kind of foolish things to show other religions dat we are not united. There is no one such incident where sahabas have celebrated Rasool's birthday.Guys please wake up & read Quraan wit Tasfeer & follow authentic Hadeeth...May Allah give Hidaya to these people who have taken wrong path by themselves
No Comments/Objection for any Muslim sponsoring cricket tournament and spending lacks of rupees with half naked women dancing on the stage, No question/Objection for the Muslim youths wearing uniform and playing cricket spending their time on the ground why you munafiqs have not questioned, No Objection/Comments on those Muslim college students protesting on the street and blocking the roads and damaging the Goverment Properties and blocking the the roads were many people are serious need to go to hospitals.
why only when the celebration is only for the Milad of the Prophet Sallallahu Alaihi Wassallam.
the above question is for all the Munafiqs who object the Celebration of the Mouludunnabi Sallallahu Alaihi Wasallam.
Moulud or Milad is Prophet's (PBAUH) birthday, which is being celebrated every 3rd month 12th day of the Hijra year... but why moulanas asking people to celebrate it throughout the year....I did not get it....like if there is happiness or sadness or grief they ask people to celebrate birthday of prophet (PBAUH)...no clue....
When a cricket tournament is organized by a muslim sponsor in which half naked women dance on the stage those money spent is not questioned from this idiots, they have problem when a Milad rally is organised where people gather and send Salaath on the beloved Rasool of Allah.
This is very much clear that those who oppose the Milad rally are munafiqs.
Warafa'na Laka zikrak. Rahega yunhi unka charcha rahega, padey khaak ho jaye jaljaney waaley.
U people are blocking the road. Where many people who are serious may have to go to hospital.
We all love our beloved prophet. Don't trouble others during that day.
Many countries giving holiday NOT to celebrate on streets.
Giving zakat to poor is the best celebration.
Sure.. Miskeens will be wholeheartedly invited for my milad to enjoy free biryani..
EID Milad un nabi (SAW) Mubarak Ho for all Momin
FOR ALL THOSE PEOPLE WHO INSIST FOR CHARITY TO POOR PEOPLE RATHER THAN SPENDING FOR MILADUNNABI
PLEASE IMPLEMENT A SYSTEM IN YOUR LIFE AND FAMILY THAT ANY MARRIAGE FROM UR FAMILY WILL BE SIMPLE, AVOID MARRIAGE HALL, AVOID DECORATION, AVOID MEHENDI FUNCTION, AND DONT CELEBRATE BIRTHDAY OF UR KIDS, SPOUSE, BROTHER, SISTER ETC, DONT CELEBRATE THE MARRIAGE ANNIVERSSARY.
INSTEAD DO CHARITY.
FIRST OF ALL EVALUATE YOURSELF AND DETACH FROM ALL THESE DEEDS, THEN COMMENT......
Mr. Salman, when is your milad????
Why don't our Muslim community use brain instead of following the Misguided ulema or grand fathers....
Biddath Mubarak to all Laddu's
Mr.Salman Bhai .u r absolutely right....
Mr. A, FYI, our community is supporting all poor people when it's required at any time and it's not limited to our festivals. Let's them enjoy their day, and don't spit venom...
Happy miladunnabi to fellow muslims...
Very unfortunate. ignorant community celebrating our beloved prophet's death day. which is Rabi Alawwal 12. In Lillahi wa inna ilahi raajioon. Ee qoum eppa sudarra?
What a moment... Jab tak hai jaan... Insha Allah jaroor manayenge eid e milad.. Thanks CD for the coverage n waiting for today's evening procession coverage.
Instead of spending huge money for uniforms , why cant you donate cloths to poor children in the remote area during the birthday of prophet mohammed ??? To whom you wants to show road rally?? why all this celeberations?? There is no birthday celeberations in Islam.
If you want to celeberate Milad, celeberate like Eid ul Fitr and Eid ul Adha when charity is the important order from prophet these two days.
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