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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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Feb 27: Famous music composer from Kannada film industry, Arjun Janya suffered a minor heart attack. The music composer was immediately taken to Apollo hospital in Mysore where he is currently undergoing treatment.

According to the doctor, Arjun Janya developed chest pain and was admitted to the hospital. The doctor revealed that he is out of danger now and will be kept under observation for a couple of days.

The 39-year-old composer-singer has scored music for successful Kannada films like Birugaali, Kempegowda, Varadanayaka and others.

Bengaluru, Mar 3: Minister of Medical Education K Sudhakar on Tuesday said that there is no need to panic as appropriate measures have been taken by the state government to tackle a possible Coronavirus outbreak.

"I request the media not to spread panic and support the government in dealing with any possible Coronavirus outbreak. With the help of the Centre we have taken all required precautionary measures to deal with any situation," Sudhakar told reporters.

Talking about the first confirmed case in Telangana, who had stopped over in Bengaluru, the Minister said, "His flatmates and 23 people who travelled with him from Karnataka are being screened. Both the state (Karnataka and Telangana) government are taking care of them."

"Out of the 295 samples collected so far, 240 tested samples tested negative. We are awaiting more results as of now. There are two labs. One in RGICS and another in Bangaluru Medical College where tests are being carried out," he said.

On Monday, the first confirmed case of a Novel Coronavirus in Telangana was reported from Hyderabad when a 24-year-old man, who had come in contact with some Hong Kong citizens, while he was in Dubai on February 17, tested positive for the virus.

After arriving in Bengaluru on February 20 and travelled to Hyderabad by bus on February 22.

Meanwhile, Telangana Health Minister Eatala Rajender on Sunday said that the state government is on a high alert since the confirmation of one Coronavirus positive case here.

The Health Department has also issued an advisory to all educational institutes.