Karnataka ATI to impart COVID-19 training to GP, TP officials

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Feb 11: BJ Puttaswamy, chairman of the State Planning Board stated that the detailed project report (DPR) to develop the Mangaluru-Karwar fisheries road at a cost of Rs 780 crores has been submitted to the state government and approval for it by the Coastal Development Authority (CDA) is pending.

Speaking to reporters here on Tuesday, he said the new developments done and in those in the future for the coastal districts.

He claimed that a feasibility report for the development of State Highway 67 has been submitted to the government.

Bengaluru, May 27: Congress leader Siddaramaiah on Wednesday hit out at Chief Minister BS Yediyurappa-led Karnataka government for allegedly "betraying" the people by not fulfilling its Rs 1,610 crore COVID-19 package promise.

Taking a dig at Yediyurappa over the matter, the Congress leader tweeted, "Chief Minister of Karnataka BS Yediyurappa has betrayed people by not fulfilling his Rs 1,610 crore package promise. He seems to be following his @BJP4India leader @PMOIndia @narendramodi."

"Crisis and vulnerability should not be misused for political gains and BJP for India is insensitive towards the same," the former Karnataka Chief Minister said.

On May 6, Yediyurappa had urged migrant workers to stay back as construction activities have resumed and announced a Rs 1,610 crores COVID-19 financial package for the state.

"A package of Rs 1,610 crores will be released as COVID-19 financial relief. One time compensation of Rs 5,000 will be given to 2,30,000 barbers and 7,75,000 drivers," the Chief Minister said.

Referring to media reports, Siddarmiah cornered the state government for asking the licence to release funds for unorganised sector workers.

"How can we expect washermen and other unorganised sector workers to have licence for their work?" he asked.

It looks like Karnataka Chief Minister is very far from reality, he added.