Help poor, needy by not cutting their salaries: Karnataka CM

Bengaluru, Jul 17: Bruhat Bengaluru Mahanagara Palike (BBMP) Mayor, M Goutham Kumar on Friday called for an extension of lockdown in the city for one more week due to rise in the COVID-19 cases.

"It will be better if we get more time to tackle COVID-19 cases, we wish for the extension of lockdown for one more week. We have given the proposal to the government," said M Goutham Kumar, BBMP Mayor.

"After the number of cases increased in Bengaluru, BBMP started antigen test in containment and hotspot zones of Bengaluru to tackle the cases which have crossed 2,000 mark," he added.

Along with Mayor, BBMP Commissioner Anil Kumar has also proposed the state government to extend lockdown in Bengaluru for one more week.

"The number of cases in Bengaluru increasing in Bengaluru rapidly. BBMP has inaugurated more than 200 vehicles in Bengaluru for the use of the antigen test," said Anil Kumar, Commissioner BBMP.

According to the Union Health Ministry, there are 51,422 COVID-19 cases in the state.

Mangaluru, Jan 21: Operations at Mangaluru International Airport (MIA) are normal, a day after security agencies detonated a bomb recovered from the airport in a controlled explosion, an official said on Tuesday.

"All operations are normal at Mangluru International Airport. Everything is normal," told the airport director V.V. Rao to IANS.

Rao said even on Monday, there was no interruption to the airport operations, except for that one recalled IndiGo flight to Bengaluru.

"As the explosive was isolated and taken away from the airport, there was no disturbance to flights, except one Bengaluru-bound IndiGo flight which suffered a few hours delay and took off later," said Rao.

Meanwhile, security has been tightened at the airport.

Mangluru north assistant commissioner of police Belliappa told media that the police are still on the hunt for the culprits who planted the bomb at the airport.

"We are trying to trace the culprits, we got the footage of the suspects," said Belliappa, highlighting that the police are yet to find the name, age and other details of the suspects.

At Bengaluru's Kempegowda International Airport (KIA), the number of police personnel has been increased in a bid to tighten the security and 24 hour searching of vehicles is underway.

"We have set up two check posts on the way to the airport and randomly checking vehicles," told Devanahalli assistant commissioner of police Subramanya to media.

All Karnataka airports, including Hubballi and Belagavi, are on high alert.

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