PM Modi takes on Siddaramaiah over corruption on his home turf of Mysuru

New Delhi, Feb 9: As the outbreak of novel coronavirus has lead to the death of more than 800 Chinese nationals, aviation regulator DGCA on Saturday said that foreigners who went to China on or after January 15 will not be allowed to enter India.

The DGCA, in its circular to airlines on Saturday, reiterated that all visas issued to Chinese nationals before February 5 have been suspended.

However, the Directorate General of Civil Aviation (DGCA) clarified, "These visa restrictions will not apply to aircrew, who may be Chinese nationals or other foreign nationalities coming from China."

"Foreigners who have been to China on or after January 15, 2020, are not allowed to enter India from any air, land or seaport, including Indo-Nepal, Indo-Bhutan, Indo-Bangladesh or Indo-Myanmar land borders," the DGCA said.

Among Indian airlines, IndiGo and Air India have suspended all of their flights between the two countries. SpiceJet continues to fly on Delhi-Hong Kong route.

On February 1 and 2, Air India conducted two special flights to Chinese city of Wuhan, epicentre of the outbreak, evacuating 647 Indians and seven Maldivians.

Till date, three Indians have tested positive for novel coronavirus.

Mumbai, Mar 16: Shri Sai Baba sansthan trust on sunday appealed to devotees to postpone their visit to Shirdi for a few days in view of coronavirus outbreak in the country.

"As per the directives of the government, I request the devotees to postpone their visit to Shirdi for a few days," said Arun Dogre, Chief Executive Officer of Shri Sai Baba sansthan trust, Shirdi.

On Saturday, the Siddhivinayak temple located in Prabhadevi has instructed all its employees to wear masks, while hand sanitizers have been provided to everyone inside the temple.

Speaking to news agency,Siddhivinayak trust chairman , Adesh Bandekar had said, "We are providing sanitizers to all the devotees in the temple and where they stand in a queue holding the railings, are being cleaned in every 30 minutes."

Coronavirus, which originated in China's Wuhan city, has so far spread to more than 100 countries infecting over 1,20,000 people. In India, 107 persons, including foreign nationals were tested positive till March 15 at 12 pm.

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