All of a sudden, NIA discovers Purohit's secret letter' against right-wing terror

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, July 14: The Karnataka government has allowed some relaxations during the week-long lockdown in Bengaluru urban and rural districts. The lockdown will commence from 8p.m. today (July 14) and end at 5a.m. on July 22.  The government has released the guidelines for lockdown.

Restrictions

*No new flights or trains will be permitted; only flights and trains already scheduled will continue to operate. Flight and train tickets shall serve as passes for movement by taxis/cab aggregators/auto rickshaws.

* Metro rail services prohibited

* Taxis and services of cab aggregators will be prohibited except for emergency and as permitted in guidelines.

* Schools, colleges, educational/training/coaching institutions etc. will remain closed. Online/distance learning shall continue to be permitted. Examination already scheduled shall be permitted

* Hotels, restaurants, and hospitality services, prohibited except those meant for health/police/government officials/healthcare workers. Hotels and restaurants shall be permitted to operate kitchens for takeaway/home delivery of food items only.

* All cinema halls, shopping malls, gymnasiums, sports complexes, stadia, swimming pools, entertainment parks, theatres, bars and auditoriums, assembly halls and similar places.

* All social/political/sports/entertainment/academic/cultural religious functions/other gatherings and large congregations.

* All religious places/places of worship shall be closed for public. Religious congregations are strictly prohibited. Commercial and private establishment shall be closed down

Relaxations (outside containment zone)

* Shops including ration shops (PDS), dealing with food, groceries, fruits and vegetables, etc. to open only from 5 am to 12 noon. Home delivery of essential items shall be encouraged.

* All facilities in the supply chain of essential goods, whether involved in manufacturing, wholesale or retail of such goods through local stores, large brick and mortar stores or e-commerce companies.

* All food processing and related industries.

* Banks, insurance offices and ATM.

* Print and electronic media.

* Telecommunication, internet services, broadcasting and cable services, IT and IT-enabled services with minimum staff for essential purposes. As far as possible, work from home should be encouraged.

* Delivery of essential items such as food, medicines, pharmaceuticals, medical equipment through e-commerce.

* Power generation, transmission and distribution units and services.

* Capital and debt market services and notified by the Securities and Exchange Board of India (Sebi)

* Cold storage and warehousing services.

* Private security services.

* Delivery of goods by E-Commerce companies. Industries/industrial establishments as listed below will be allowed to operate (outside containment zones):

i. Production units which require continuous process, and their supply chain.

ii. Food processing industries, manufacturing of essential goods, including drugs, pharmaceuticals, medical devices, their raw material and intermediates.

iii. Manufacturing of packing materials.

iv. Manufacturing and other industrial establishment with access control in Special Economic Zones (SEZs) or outside municipal limits and Export Oriented Units (EoUs), Industrial townships. Construction activities will be allowed in continuation of works in construction projects, where workers are available on site.

Bengaluru, Apr 7: Former Minister and Leader of the Opposition Siddaramiah on Tuesday termed the shutting by private clinics in the state by doctors as an 'inhuman act'.

Taking to micro-blogging site Twitter, the Congress leader said due to the fear of Novel Coronavirus, the doctors have closed their private clinics, which was against their profession.

This has affected the people, especially those, who are suffering from other deceases. He urged Chief Minister B S Yediyurappa to intervene and resolve the issue immediately.

Despite the government instructions not to close down their clinics, the doctors have not been responding positively, Mr Siddaramaiah noted.

In this connection, the government should act seriously and give necessary warning to the doctors, to either open their clinics to serve the people, or face action, he added.