Foundation stone for Alf Residency laid

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 24: Karnataka is likely to start Convalescent Plasma Therapy for COVID-19 patients, who are critical, from tomorrow, Medical Education Minister K Sudhakar said here on on Friday. "We have already got approval for Convalescent Plasma Therapy.

There is no need for any special permission for it....when I was in BMC (Bangalore Medical College) I spoke to We may probably start it for the first patient from tomorrow itself. The donor has also agreed," Sudhakar said.

Speaking to reporters here, he said the convalescent Plasma Therapy was only for patients who are critical, in Intensive Care Units or on ventilator. According to the latest update, five COVID-19 patients are in ICUs in the state.

After attending video conferencing by Union Health Minister Harsh Vardhan with health and medical education Ministers of all states, Sudhakar said the Minister lauded the good practices adopted by Karnataka in its fight against COVID-19 and asked to share the same with other states.

Responding to a question, he made it clear that COVID-19 is something that was not going to end by May 3 or by May end and like other viruses, would continue to exist. Sudhakar, who is leading the government's efforts against COVID-19 in Bengaluru and is in charge of the state war room, said many people are treating corona as a social stigma, which was not right.

There was no reason to get frightened about it as the infection can be cured, he said. "We have to take precautions so that it doesn't spread further....like fever, cold and cough- corona also can be cured... 97% people it can be cured, those with comorbidity and those above 60 years have to take some precautions. We have to bring in certain changes in our lifestyle and maintain social distancing," he added.

Mangaluru, Jan 18: Congress leader Siddaramaiah targeted Union Home Minister Amit Shah soon after he arrived in Bengaluru on Saturday, demanding his answers on various questions pertaining to the state.

In a slew of tweets under the #AnswerMadiShah banner, Siddaramaiah raised issues ranging from the August 2019 floods to the recent police shootout in Mangaluru that killed two people during an anti-CAA protest.

On December 19, Jaleel (45) and Nausheen (24) were killed after the police opened fire during a protest against the CAA.

“Two innocent victims were killed in Mangaluru in what public opinion says that it is a fake encounter. You are the Home Minister of the country. Don't you think adequate investigation has to take place when people cry foul about the incident?” Siddaramaiah asked.

He further asked: “Mr Amit Shah, before investing time to brainwash people to accept your divisive policies, why don't you visit flood-affected areas again and assess if the Central government funds  are sufficient or not?”

The Congress leader pointed out that Chief Minister BS Yediyurappa had claimed that Karnataka suffered losses of over Rs 35,000 crore due to the floods. “But your aid is just Rs 1,870 crore. When are you planning to give the remaining? Will there be any funds left after the implementation of CAA, NPR & NRC?” he added.

The former chief minister brought up the Mahadayi river water sharing dispute. It may be recalled that Shah, in the run-up to the Karnataka Assembly elections in 2018, had promised a resolution to the dispute within six months if BJP was voted to power in the state.

“Mr. Amit Shah, your colleagues give contradictory statements on the initiation of Mahadayi project. Why is there a change in stance after elections? What is your stand on the issue,” Siddaramaiah asked.