BJP will secure majority in Karnataka: Tejasvi Surya

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Riyadh, Jun 17: Saudi Arabia is expected to scale back or call off this year's hajj pilgrimage for the first time in its modern history, observers say, a perilous decision as coronavirus cases spike.

Muslim nations are pressing Riyadh to give its much-delayed decision on whether the annual ritual will go ahead as scheduled in late July.

But as the kingdom negotiates a call fraught with political and economic risks in a tinderbox region, time is running out to organise logistics for one of the world's largest mass gatherings.

A full-scale hajj, which last year drew about 2.5 million pilgrims, appears increasingly unlikely after authorities advised Muslims in late March to defer preparations due to the fast-spreading disease.

"It's a toss-up between holding a nominal hajj and scrapping it entirely," a South Asian official in contact with Saudi hajj authorities said.

A Saudi official said: "The decision will soon be made and announced."

Indonesia, the world's most populous Muslim nation, withdrew from the pilgrimage this month after pressing Riyadh for clarity, with a minister calling it a "very bitter and difficult decision".

Malaysia, Senegal and Singapore followed suit with similar announcements.

Many other countries with Muslim populations -- from Egypt and Morocco to Turkey, Lebanon and Bulgaria -- have said they are still awaiting Riyadh's decision.

In countries like France, faith leaders have urged Muslims to "postpone" their pilgrimage plans until next year due to the prevailing risks.

The hajj, a must for able-bodied Muslims at least once in their lifetime, represents a major potential source of contagion as it packs millions of pilgrims into congested religious sites.

But any decision to limit or cancel the event risks annoying Muslim hardliners for whom religion trumps health concerns.

It could also trigger renewed scrutiny of the Saudi custodianship of Islam's holiest sites -- the kingdom's most powerful source of political legitimacy.

A series of deadly disasters over the years, including a 2015 stampede that killed up to 2,300 worshippers, has prompted criticism of the kingdom's management of the hajj.

"Saudi Arabia is caught between the devil and the deep blue sea," Umar Karim, a visiting fellow at the Royal United Services Institute in London, told AFP.

"The delay in announcing its decision shows it understands the political consequences of cancelling the hajj or reducing its scale."

"Buying time"

The kingdom is "buying time" as it treads cautiously, the South Asian official said.

"At the last minute if Saudi says 'we are ready to do a full hajj', (logistically) many countries will not be in a position" to participate, he said.

Amid an ongoing suspension of international flights, a reduced hajj with only local residents is a likely scenario, the official added.

A decision to cancel the hajj would be a first since the kingdom was founded in 1932.

Saudi Arabia managed to hold the pilgrimage during previous outbreaks of Ebola and MERS.

But it is struggling to contain the virus amid a serious spike in daily cases and deaths since authorities began easing a nationwide lockdown in late May.

In Saudi hospitals, sources say intensive care beds are fast filling up and a growing number of health workers are contracting the virus as the total number of cases has topped 130,000. Deaths surpassed 1,000 on Monday.

To counter the spike, authorities this month tightened lockdown restrictions in the city of Jeddah, gateway to the pilgrimage city of Mecca.

"Heartbroken"

"The hajj is the most important spiritual journey in the life of any Muslim, but if Saudi Arabia proceeds in this scenario it will not only exert pressure on its own health system," said Yasmine Farouk from the Carnegie Endowment for International Peace.

"It could also be widely held responsible for fanning the pandemic."

A cancelled or watered-down hajj would represent a major loss of revenue for the kingdom, which is already reeling from the twin shocks of the virus-induced slowdown and a plunge in oil prices.

The smaller year-round umrah pilgrimage was already suspended in March.

Together, they add $12 billion to the Saudi economy every year, according to government figures.

A negative decision would likely disappoint millions of Muslim pilgrims around the world who often invest their life savings and endure long waiting lists to make the trip.

"I can't help but be heartbroken -- I've been waiting for years," Indonesian civil servant Ria Taurisnawati, 37, told AFP as she sobbed.

"All my preparations were done, the clothes were ready and I got the necessary vaccination. But God has another plan."

Bengaluru, Apr 9: In order to stop fake forwards about coronavirus shared by some netizens which is creating hate and fake news, the Karnataka state police have launched a new section (landing page) of fact checks in the Karnataka State Police official website.

which is falsely framing a particular community by sharing photos and videos on social media by some netizens which is creating hate -- the Karnataka state police have launched a new section (landing page) of fact checks in the Karnataka State Police official website.