Karnataka: CM B S Yediyurappa holds review meeting on coronavirus

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

A motley group of as many as 150 birders ‘walked the chirp’ in search of their feathered friends in and around the countryside of Manipal. The occasion was the 10th Edition of Manipal Bird Day organised by Manipal Birders Group on Sunday, February 2nd, 2020.

The day began ‘Bird Walk’ from Hotel Sheela Sagar (Opposite MIT campus) at 6:30 a.m. The birders divided themselves in smaller groups of 10-12 members and followed 13 different trails which took them through different terrains like hills, plains, paddy fields and wetlands. The idea was to sight as many birds as possible and record their presence in the region.

When the walk ended at about 10:00 a.m., the different groups have recorded a total of 125 species of birds, which was a bit lesser than the sighting of the yester years. “The 10th edition this year has seen a very good growth of interest among people. At the same time a decline has been seen in the bird species sighted compared to previous years,” said one of the organisers. Some of the rare birds sighted were Indian Pitta, Oriental Turtle Dove, Fork-Tailed Drongo Cuckoo, Orange Breasted Green Pigeon, Eurasian Marsh Harrier and Malabar Pied Hornbill.

The bird walk was followed with an interaction session at KMC Food Court and MAHE Vice Chancellor Dr. H. Vinod Bhat presided over the function. He felicitated six people who actively participated recently in a rescue mission of abandoned birds in Manipal.

A program then continued with a talk on ‘Ethical Photography’ by Dhruvam Desai, final year student of MIT, Manipal. This was followed by ‘Backyard Birding’ with Shubha Bhat from IISc Bangalore. She spoke on different ways to feed the birds with water using different materials for bird baths. “I have recorded 120 species of birds from bird baths in my garden,” she said. She encouraged the participants to have bird baths in their gardens or flats which will help quench the thirst of these little winged wonders during summer.

The participants involved themselves actively in the interaction sessions. The event was accompanied with an art exhibition titled ‘Feathered Jewels’ by Aditya Bhat. He presented around 18 paintings all from his memory of birding encounters.

Participation in Manipal Bird Day was open to all and entry was free.

MANIPAL BIRD DAY

Manipal Bird Day is an annual event dedicated to celebrating birds in Manipal. This day long event brings together a large number of birders from Manipal, Udupi, Mangalore, Mysore, Bangalore, Davangere and other places. Around 150-200 people gather and are split into different teams. They visit the assigned regions and count as many birds as possible. This non competitive event focuses on spreading awareness regarding the diverse avifauna around us. Turn out for this event has been increasing from 3 people to 200 in last 10 years. This is the 10th edition of Manipal Bird Day.

MANIPAL BIRDERS CLUB

Manipal Birders Club started as a Facebook group after the release of the first edition of “A Birders Handbook to Manipal” to share information about the latest sightings. It is now a formal group of over 500 like-minded members that meets at least once a week to go on bird walks. It is now a large birders community and a medium to organize events, bird walks and discussions about birds and sightings.

The next step would be to involve a higher number of local and young birders who will dictate the change in environment around the town in the coming years. With the co operation of Zoology and natural sciences students and other nature enthusiasts and faculty of different colleges weekly birding sessions have been conducted to involve and encourage more and more people to bird and get connected to the nature and to try to understand the changes happening around us, the media release issued by the group said.

Bengaluru, Jun 2: Karnataka recorded a biggest single day spike of 388 COVID-19 cases, with returnees from neighboring Maharashtra continuing to add to the state's tally, taking the total number of infections in the state to 3,796, the health department said on Tuesday.

With 367 out of 388 new cases being returnees from other states, mostly from neighboring Maharashtra (357), the Karnataka government said it was mulling over increasing institutional quarantine for those returning from the western state. Meanwhile, achieving a milestone in the battle against the coronavirus,the Karnataka Institute of Medical Sciences at Hubballi has successfully treated a COVID-19 patient through plasma therapy.

"Maharashtra (returnees) is a major worry for us, already 15,000-20,000 people have come from Maharashtra, still 2000 odd people may come to each district, as we have allowed so many people already, we have decided to allow them also, Revenue Minister R Ahoka said.

Speaking to reporters here, he said ".....cases coming from Bombay and Pune are turning out to be positive, we have to take extra caution, seven days quarantine (institutional) is of no use, we want to increase it specifically for those returning from Maharashtra.

We will take a decision soon and issue order." Chief Minister B S Yediyurappa earlier directed district authorities including the Deputy Commissioners and Superintendents of Police to camp at taluk centres and work towards curbing the spread of COVID-19. Pointing out that COVID-19 cases were increasing in the state because of returnees from Maharashtra, he asked officials to take all necessary measures to check it, his office said in a release. The previous biggest single-day spike was recorded on May 31 with 299 cases. As of June 2 evening, cumulatively 3,796 COVID-19 positive cases have been confirmed in the state, which includes 52 deaths and 1,403 discharges, the health department said in its bulletin.

It said out of 2,339 active cases, 2,325 patients are in isolation at designated hospitals and are stable, while 14 are in ICU.

According to the bulletin,75 patients have been discharged today.

Medical Education Minister K Sudhakar said Karnataka Institute of Medical Sciences in Hubballi has successfully treated a COVID-19 patient through Plasma Therapy.

"Karnataka achieves yet another milestone in battle against #COVID19.

KIMS Hubli has successfully treated a Covid19 patient through Plasma Therapy & is the first institute in the state to accomplish this. Congrats to KIMS doctors & staff for this feat!" the Minister tweeted.

Among the districts where the new cases were reported, Udupi accounted for 150 cases, followed by Kalaburagi 100, Belagavi 51, Raichur 16, Bengaluru urban 12, Bidar 10, nine each from Bagalkote and Hassan, Davangere seven, Yadgiri five, four each from Mandya and Vijayapura, Bengaluru rural three, two each from Chikkaballapura, Dharwad and Tumakuru, and one each from Kolar and Haveri.

Udupi district tops the list of positive cases with 410 infections, followed by Kalaburagi 405 and Bengaluru urban 397.

Among discharges too Bengaluru urban tops the list with 237 discharges, followed by Kalaburagi 128 and Davangere 121.

A total of 3,19,628 samples have been tested so far, out of which 14,812 were tested on Tuesday alone.

According to the bulletin, 3,10,967 samples have reported as negative, 13,915 on Tuesday alone.