Highest joblessness among Christians, Muslims; least in Hindus, Sikhs'

Bengaluru, Feb 13: UK's Chancellor of the Exchequer Sajid Javid quit the Boris Johnson government as part of a cabinet reshuffle unfolding on Thursday and has been replaced by Rishi Sunak, reports said.

Indian-descent Sunak, 39, who is married to Akshata, the daughter of Infosys co-founder N.R. Narayana Murthy, was Chief Secretary to the Treasury since July 2019.

An analyst with Goldman Sachs before joining politics in 2014, Sunak, whose grandparents were from Punjab and emigrated to the UK from east Africa, is MP from Richmond (Yorkshire). He was Parliamentary Under-Secretary of State for Local Government in the Theresa May government.

Pakistani-descent Javid, who became the first Asian to become a Cabinet Minister when he was made Secretary of State of culture, Media and Sports in the David Cameron government in 2014 after stints as Economic Secretary to the Treasury (2012-13) and Financial Secretary (2013-14), was earlier the Home Secretary in the the Theresa May government.

He had then cleared absconding businessman Vijay Mallya's extradition to India in February last year following the decision by the Westminister Magistrates Court in December 2018.

Javid, who ran for Conservative Party leadership after May quit but lost to Boris Johnson, was made Chancellor by the later. In the reshuffle on Thursday, he was offered to retain his post if he fired all his advisors but declined and quit, the BBC reported.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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