Govt takes up issue of establishing US consulate in Bengaluru

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jul 24: Low-cost airline IndiGo airlines would be operating between Mumbai and Mangaluru four days a week - Monday, Wednesday, Friday and Sunday. The operation will begin today (July 24).

The flight will take off from Mumbai at 9.30 am and will land at Mangaluru International Airport at 11.00 am. 

The flight will take off from Mangaluru at 11.40 am and will reach Mumbai at 1.15 pm. To avail the flights for Mangaluru, passengers can report to Terminal T2 in Mumbai.

Before boarding the flight, a standard procedure regarding quarantine regulation has been issued. The passengers boarding the flight from Mumbai will have to undergo thermal screening at the airport. The airport officials will also be required to apply a quarantine stamp on the passengers.

The airline will be required to provide a detailed list of passengers arriving, along with flight information, arrival time, mobile number of the passengers and their residential addresses and share these with the nodal officer.

It is mandatory for the passengers to download Aarogya Setu app. In addition to this, passengers intending to exit Mumbai within seven days of the arrival should be able to produce a confirmed ticket for onward/return journey to get quarantine exemption.

Domestic passengers will have to undergo 14 days of home quarantine. However, all domestic passengers intending to exit Mumbai within seven days of the arrival will be exempted from quarantine, provided they are able to produce a confirmed ticket for onward/return journey.

Bengaluru, Mar 12: Days after a video of an elephant being shot in Bandipur National Park went viral on social media, officials said that they have removed a staffer and initiated action against an employee of the Karnataka Forest Department in the matter.

According to officials, the incident took place on March 7.

"We have removed Rahim, temporary staffer, and initiated action against Umesh, a permanent employee of the Karnataka Forest Department, after an internal enquiry," Bandipur field director T Balchandra said.

While Rahim is said to have shot the charging elephant, Umesh reportedly made the video and shared it on social media.