Under-19 and Under-16 cricketers selected for KSCA Academy coaching

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Apr 26: After directions from Karnataka government, migrant labourers are being sent to their native villages in batches by hiring as many as 60 buses.

Divisional Controller of Mangaluru KSRTC Division S N Arun said on Sunday that 100 buses from Mangaluru and Puttur ferried stranded labourers on Saturday. Buses were disinfected before the journey.

Buses also left from Dharmasthala, Bantwal, Puttur and Sullia to different destinations. In adherence to social distancing rules, each bus left with 20 to 22 labourers.

Tightening control over companies misleading advertisements of medicines and products, the Indian government could soon slap a fine of up to Rs10 lakh and up to two years' imprisonment. While repeat offender could be fined up to Rs50 and imprisonment up to five years.

The Ministry of Health and Family Welfare's new draft of the Drugs and Magic Remedies (Objectionable Advertisements) (Amendment) Bill, 2020, provides extremely stringent penalties compared to the current law.

Under the new Act, companies advertising medicines and products falsely claiming to make a person fairer, improve height and memory or cure issues like hair loss or greying and premature ageing, among several others, may attract more stringent fines and jail time.

The current Act, 1954, leaves scope for companies to create deceptive advertisements as first time offender can be jailed for six months while repeat offender can be up to one year in prison, reported The Indian Express.

Under the Bill, deceptive advertisements will cover digital advertising, notice, circular, label, wrapper, invoice, banner and poster, among others. The government also plans to expand the scope of the law under the proposed amendments to cover 24 more deceptive claims not included in the current law, like medicines that can cure AIDS, change the sex of a foetus, among others, reported Livemint.