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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Hassan, Feb 2: Former prime minister and JD(S) supremo H D Deve Gowda has said that the controversy over the Citizenship (Amendment) Act should be resolved peacefully through discussion.

Speaking to reporters in Halebeed on Saturday, Gowda said that the Act affects only Muslims but would also prove troublesome for the Hindus. “Opening fire on anti-CAA protesters is the not solution to the issue,” he said.

Deve Gowda said that during his tenure as prime minister a number of problems concerning Muslims were addressed. “But, in the run up to election, Rahul Gandhi described us ‘B’ team of BJP. This led to vote swing,” he added. When his comment was sought on the budget, the former prime minister said that he had not yet read the budget document.

Bengaluru, Jul 10: The Karnataka cabinet gave its approval for "The Karnataka Contingency Fund (Amendment) Bill, 2020" to enhance the contingency fund limit to Rs 500 crore in the wake of the COVID-19 pandemic.

This will be an ordinance making one time enhancement in the limit as the government needs money to make payments immediately, Law and Parliamentary Affairs Minister JC Madhuswamy told reporters after a cabinet meeting.

Under the contingency fund, the government had room to spend up to Rs 80 crore without budget provision.

"...but this time due to COVID-19 as we had to give money to some sections that were in distress like barbers, flower and vegetable growers, taxi drivers, among others, we have decided to increase the limit to Rs 500 crore," Mr Madhuswamy said.

"As assembly was not in session and as we had to make payments to those in distress immediately, this decision has been taken," he added.

The cabinet today ratified the administrative approval given to carry out civil and electrical works to install medical gas pipeline with high flow oxygen system at district hospitals, taluk and community health centres coming under Health and Family welfare department in view of COVID-19.

The minister said about Rs 207 crore is being approved for this purpose.

It also ratified procurement of medical equipment and furniture for public healthcare institutions of the health and family welfare department worth Rs 81.99 crore.

According to the minister, the cabinet has decided to bring in an amendment to section 9 of the Lokayukta act, which mandates that the preliminary inquiry contemplated by Lokayukta or Upalokayuta should be completed in 90 days and charge sheeting should be completed within six months.

Noting that at the Agricultural Produce Market Committee (APMC) cess was being collected, he said as the government had brought in an amendment to the APMC act, there was demand to reduce the market cess. "So we have reduced it from 1.5 per cent to one per cent."

Approval has also been given by the cabinet to bring Karnataka Vidyuth Kharkane (KAVIKA) and Mysore Electrical Industries (MEI), which are presently under the control of Commerce and Industries department, under administrative control of the energy department.

Other decisions taken by the cabibinet include deployment and implementation of "e-procurement 2.0" project on PPP at a cost of Rs 184.37 crore and ratification of the action taken to issue orders on March 24 to release interest free loan of Rs 2,500 crore to ESCOMs for payment of outstanding power purchase dues to generating companies.

The cabinet also gave administrative approval for setting up of an Indian Institute of Information technology at Raichur.

"Under this, we are committed to provide Rs 44.8 crore in four years for infrastructure," the minister added.