Beef row: Bajrang Dal activists among 7 booked for attack on Dalits

Bengaluru, Apr 9: 10 new positive cases have been confirmed in Karnataka, apart from the recent fatality of an 80-year-old woman from Gadag district, the health department said on Thursday.

The fresh cases have been reported in the state from last evening to Thursday noon.

Till date, 191 COVID-19 positive cases have been confirmed, which includes 6 deaths and 28 discharges, the update said.

Among the 10 positive cases, eight are contacts of patients who have already tested positive- one each from Belagavi, Mandya and Chikkaballapura, two from Mysuru, and three from Bagalkote; while two from Bengaluru city are with a travel history to Delhi.

Three cases from Bagalkote are children- two boys of 4 and 13 years of age, and one girl of 9 years old.

The elderly woman died on April 8 in Gadag, the department said in its mid-day situation update.

Confirming that her reports tested positive on April 7, officials had said, she had a history of Severe Acute Respiratory Infection (SARI).

Mangaluru, June 11: The private flight chartered by Saudi Arabia's SAQCO Contracting Company to repatriate coastal Kannadigas stranded in the kingdom landed at Mangaluru International Airport at 1:15 am on Wednesday.

The flight with 175 passengers took off from the Dammam International Airport around 6 pm (KSA time).

SAQCO’s Directors Althaf Ullal and Basheer Sagar said that all the legal procedures were carried out smoothly before the flight took off from Dammam for Mangaluru.

The duo also informed that no staff or official of SAQCO were traveling on the chartered flight and that it was arranged only for the stranded Kannadigas. The cost of traveling, institutional quarantine, and COVID-19 tests will be borne by the SAQCO Company.

SAQCO had established a desk to finalize the list of passengers who will be traveling on the flight to Mangaluru on Wednesday. The company added priority was given to pregnant women, the senior citizens who had come to the kingdom on visit visas, people with medical emergencies, people who had lost jobs, and those who had reported deaths in their families.

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