Puttur techie Hafiz KA appointed sub-lieutenant of Indian Navy

Bengaluru, Mar 31: Persons under home quarantine are directed to send their selfies to the Karnataka government in every one hour, failing which they will be shifted to the state quarantine centres, said Medical Education Minister Dr K Sudhakar on Monday.

"All persons under home quarantine shall send their selfies to the government on a mobile application in every one hour. Failing to do so, teams will reach such defaulters and they will be liable to be shifted to quarantine centres made by the government," he said.

The home quarantine persons will be given an exception for taking selfies during the sleeping time from 10 pm to 7 am.

"There will be an exception in this order for sleeping time, from 10 pm to 7 am," he said.
The total number of COVID-19 cases in Karnataka climbed to 88 on Monday after five more persons tested positive for coronavirus.

Of the five, one is a close contact of an earlier confirmed patient and the others are workers of a pharmaceutical company in Mysuru, from where a person had tested positive, the state health department said.

The country is under a 21-day lockdown to prevent the spread of coronavirus, which according to the Ministry of Health and Family Welfare, has infected 1,251 people so far.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Mar 3: Bangalore Metropolitan Transport Corporation (BMTC) on Tuesday issued guidelines to its employees, as per advisory issued by World Health Organisation (WHO), to prevent the spread of coronavirus.

"The BMTC has provided general information on the topic and SOPs for daily life and operations to our employees as per advisory issued by the WHO. The corporation has started a communication campaign about Coronavirus indicating its characteristics, known ways of infection and recommended preventive measures. This information was distributed to the staff, drivers and conductors through Whatsapp, pamphlet and email," informed BMTC.

"The information was also distributed through pamphlets at bus stations. An awareness campaign is being taken up by sharing relevant information through social media," it added.

The BMTC further said that the circular was issued to create awareness among the cleaning personnel who work in depots.