PFI, SDPI have terror links; Cong joined hands with them: Shobha

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 12: Cheif Minister BS Yediyurappa on Sunday paid homage to Legendary Kannada actor Dr. Rajkumar on his 14th death anniversary.

Yediyurappa shared a poster of Dr Rajkumar on his Twitter with a caption, “We pay homage to Karnataka Ratna Dr. Rajlumar on his death anniversary. Let us keep the unique service rendered by Dr. Rajkumar through Theater and movies. ”

Let us keep the unique service rendered by Dr. Rajkumar through theater and movies. ”

Dr Rajkumar is one of the greatest actors in the history of Kannada film industry and is known as a legendary actor in Sandalwood. He has acted in more than 200 movies and has a huge fan base even after his demise.

New Delhi, Jul 16: India’s Covid-19 tally on Thursday jumped to 968,876 after the country reported highest-ever single-day spike in coronavirus cases registering 32,695 new infections in the last 24 hours. According to the government data, India’s Covid-19 death toll stands at 24,915 after 606 fresh fatalities were reported in the last 24 hours.

The number of recovered patients in India stands at 612,814. On Wednesday, the government said that a record 20,572 patients recuperated from Covid-19 disease in the last 24 hours (between Tuesday and Wednesday), taking the country’s recovery rate to 63.24 percent.

While the Covid-19 tally runs in lakhs in states like Maharashtra, Delhi and Tamil Nadu, other states have been reporting a surge in coronavirus infections. Karnataka has reported over 47,000 coronavirus cases till date but its active cases are more that of Delhi. It has overtaken Gujarat as the fourth worst-hit state in the country. Gujarat’s Covid-19 tally stands at 44,552.

Here’s taking a look at the Covid-19 situation across worst-affected states:

Maharashtra

The state Covid-19 tally jumped to 275,640 on Thursday. As many as 152,613 people have recovered from coronavirus in Maharashtra while 10,928 have died.

Tamil Nadu

With 151,820 coronavirus cases, Tamil Nadu is the state with second-highest coronavirus cases in the country and has witnessed 2,167 coronavirus fatalities. The number of patients who have recovered from coronavirus in the state stands at 102,310.

Delhi

The national capital is the third worst-hit in India with coronavirus cases jumping to 116,993 on Thursday. As many as 95,699 patients have recovered from Covid-19 in the national capital while 3,487 have succumbed to the infection.

Karnataka

The South Indian state has witnessed 47,253 coronavirus cases till date and is now the fourth worst-affected in the country. While 928 have lost their lives to the deadly contagion in the state. Nearly 18,466 patients have recovered from the disease in Karnataka.

Gujarat

Gujarat has seen Covid-19 cases reach 44,552 on Thursday. The state has seen 31,286 people recover from coronavirus while 2,079 people have died.

Uttar Pradesh

The Covid-19 tally in Uttar Pradesh has jumped to 41,383 while the number of recoveries has touched 25,743. The state’s death toll has crossed 1,000.

Telangana

The state’s Covid-19 tally stands at 39,342 coronavirus cases. While 25,999 people have recovered from the disease, the Covid-19 death toll has jumped to 386 in the state.

Andhra Pradesh

The state has reported 35,451 Covid-19 patients till date. While 18,378 people have recovered from the virus across the state, the death toll stands at 452.

West Bengal

As many as 34,427 people have contracted Covid-19 in West Bengal till date. The state has seen 20,680 recover from coronavirus while 1,000 people have been killed.

Rajasthan

The state has reported 26,437 Covid-19 cases till date. Covid-19 death toll in Rajasthan stands at 530 while 19,502 patients have recovered.