Yeddyurappa promises 7.5% quota for Valmikis if it comes to power

Mangaluru, Mar 10: Tension prevailed in the city after an international flyer quarantined at the District Wenlock Hospital walked out of the facility.

The passenger, with a recent travel history to high-risk countries, refused to cooperate with health officials. The day-long drama ended when the district administration intervened and the flyer agreed to get himself re-admitted.

Deputy commissioner Sindhu B Rupesh said the passenger had fever and was sent to an isolation ward. “The passenger is cooperating with the treatment and samples have been collected for testing,” she said. The samples will be sent to a testing centre in Bengaluru.

Sources told  that rude behaviour by staff at Mangalore International Airport may have angered the passenger and he walked out of the quarantine facility.

She said if passengers show reluctance to be screened, they should first be counselled and allowed to get themselves admitted to a hospital of their choice with quarantine facility. If they still refuse to cooperate, they will have to be hospitalised forcefully, she added.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bengaluru, Apr. 10: Karnataka Congress leader DK Shivakumar on Thursday appealed to party workers to save the lives of people of the state and show solidarity with the people in need amid the coronavirus lockdown.

"Humble appeal to Congress party workers that the time has come to do our best to save the lives of people of Karnataka. Hospitals across Karnataka are running short of blood. This is a call for able-bodied to volunteer & donate blood. Let us show solidarity with people in need," Shivakumar tweeted.

With 16 fresh COVID-19 cases reported in the last 24 hours, the total number of confirmed cases in Karnataka reached 197 on Thursday, according to the state's Health Department.

India's total COVID-19 cases rose to 5,865 on Thursday, with 591 new cases reported in the last 24 hours, according to the Ministry of Health and Family Welfare.