Kiran Bedi congratulates first woman DG&IGP of Karnataka

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mumbai, June 7: As the Maharashtra government has given green signal for outdoor physical activities under 'Mission Begin Again' despite amidst growing cases of covid-19,  thousands of Mumbaikars flocked to Marine Drive for 'morning walks' on Sunday.

People were seen wearing masks as a precaution from the novel coronavirus pandemic, however, from the viral photo, it seems that no social distancing norms were followed what so ever.

"Better call it marne waalon ka drive," said a Twitter user. "Still people have no sense of responsibility," said another Twitter user.

After nearly 80 days of lockdown, Mumbai and other parts of Maharashtra revved back to life on Friday. 

Most markets, market areas, commercial and trading areas - barring malls or market complexes - reopened for business even as Chief Minister Uddhav Thackeray reiterated that "people should tread cautiously while beginning a 'new life' from today".

Meanwhile, of the total 82,968 cases in Maharashtra, Mumbai now accounts for 47,354 cases and 1,577 deaths.

On Saturday, Maharashtra reported 120 deaths, including 58 in Mumbai, due to COVID-19, taking the overall number of fatalities to 2,969, state Health department said.

The recovery rate in the state stands at 45.06 per cent and the fatality rate at 3.57 per cent, an official statement said.

Bengaluru, Mar 28: The Karnataka government on Saturday said that the state run Indira Canteens would provide food packets free of cost to the poor and needy in the wake of the lockdown, the government said here on Saturday.

The canteens would operate in three schedules -from 7:30 AM to 10 AM, 12:30 PM to 3 PM and 7:30 PM to 9 PM, the government said in a public announcement

During the scheduled hours, street side vendors, labourers and poor would be provided food free of cost.

After the cabinet meeting on Friday, Chief Minister B S Yediyurappa had said food packets would be provided to the poor and needy with the help of some organisations through the Canteens and had sought the help of everyone in this regard.

The State-sponsored, subsidised 'Indira Canteens' as of now serves breakfast at Rs five and lunch and dinner at Rs 10.

The government asked people availing the facility to maintain cleanliness at the canteen and staff who serve food to compulsorily use masks and hand gloves.

It also said soaps and sanitizers should be made available at the canteens.

The government also asked people to maintain a minimum distance of one metre while standing in queue and take all precautionary measures.

Earlier, a day after announcing that food would be provided free of cost through the canteens for daily wagers, Yediyurappa on March 24 had said it has been decided that the canteens will not be opened, after realizing that it was leading to crowding, which drew criticism.