Mersal row: BJP’s Raja drags Vijay’s Christian identity to justify GST!

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

New Delhi, Mar 9: The Centre and the Delhi government are working in close coordination to deal with coronavirus, Chief Minister Arvind Kejriwal said here on Monday.

Talking to reporters after a review meeting with Union Health Minister Harsh Vardhan on the preparedness for COVID-19, the chief minister said people arriving from foreign countries are being screened at airports.

A campaign will be run to make people aware of the preventive measures to contain the spread of the disease, Kejriwal said.

Health Ministry sending directives to states: Vardhan

Health Minister Harsh Vardhan said the government is prepared to deal with novel coronavirus and his ministry is sending directives, including guidelines, to states in all the languages on ways to contain it.

"We are sending detailed guidelines to all states on ways to contain coronavirus. Have asked states to strengthen laboratories and manpower to effectively deal with coronavirus and form early rapid action teams," Vardhan told reporters adding, that the government is prepared to deal with the infection.

Vardhan stressed on a coordinated action between all concerned departments and agencies for activities such as contact tracing, community surveillance, hospital management, identification of isolation wards, ensuring adequate personal protection equipment and masks and risk communication for mass awareness.

Bengaluru, Mar 11: The move by rebel ruling Congress MLAs in Madhya Pradesh to trigger the crisis for the party's government in the state appears to have been in the making for at least close to a month as Karnataka BJP leaders were sounded about hosting them in Bengaluru in advance, sources said.

They also indicated that the 19 rebel MLAs would stay in the city for at least two weeks till an alternative government takes charge in Madhya Pradesh.

A senior Karnataka BJP leader, in charge of the Madhya Pradesh legislators' stay in Bengaluru, received a communication from the party's central leaders about the move nearly 15-20 days ago, the sources involved in the development said on condition of anonymity on Tuesday.

The leader had even gone to New Delhi in the third week of February to meet BJP's central leaders in this regard, they said.

In a massive setback for the Congress, its prominent youth leader Jyotiradtya Scindia quit the party and in a coordinated rebellion on Tuesday 21 MLAs loyal to him resigned in Madhya Pradesh, pushing the 15-month-old Kamal Nath government to the brink of collapse.

As many as 19 Madhya Pradesh MLAs, including six ministers, said to be loyalists of Mr Scindia who appeared set to join BJP, are camping at a resort in Bengaluru. Two of them are women, the sources said.

The MLAs on Tuesday sent their resignation letters via e-mail to Raj Bhavan in Bhopal from Bengaluru.

According to the sources, eight legislators, including an independent, have been staying in the city for about a week now. Of them two - one from Congress and the other an independent MLA - had gone back.

The six were joined by 13 legislators, who landed in the city by a chartered flight on Monday, and all of them are put up in a villa.

The senior Karnataka BJP leader, also an MLA, is looking after their stay and related arrangements on the directions of the party high command, the sources said. Their stay here may be for a couple of weeks.

"There will be a no-confidence motion, and then there will be a trust vote of the new alternative government that will be formed. So they may have to stay here for some time. They may be moved out of their current location," they said.

The Madhya Pradesh legislature session is expected to begin on March 16.

The sources also said the six legislators staying in the city since last week were shifted a couple of times within the city.

Congress in Madhya Pradesh, under the leadership of Kamal Nath, had come to power in December 2018 by ousting the BJP by a narrow margin.