Treat us well before striking alliance for LS polls: Deve Gowda tells Congress

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, May 19: An Indian expatriate worker hailing from Karnataka’s Dakshina Kannada district, who was undergoing treatment for covid-19, passed away in Kuwait.

He is survived by his wife, a son, and a daughter. His family resides at Kashimath, Vittal in Bantwal taluk.

According to sources, he was unwell for past one month and had been diagnosed with covid-19 infection.

The last rites were conducted in Kuwait. Under the guidance of the priests of the local church, prayer and other last rituals were performed at his home in Bantwal.

He had visited this hometown last year for the wedding of his daughter, sources said.

Bengaluru, Jan 25: Several women have completed a 24-hour protest here against the Citizenship Amendment Act (CAA) and are going strong to stretch it to 48 hours.

"More than a thousand women gathered on the Masjid Road at Frazer Town to denounce the CAA and National Register of Citizens (NRC)," participant and Mount Carmel College student Noor Zahira told IANS.

The women protesters extended their support to the students in Jamia Millia Islamia, the Aligarh Muslim University, the Jawaharlal Nehru University and others who were recently roughed up allegedly by police and masked goons.

Zahira, 20, said the women's protest was planned only for 24 hours but is continuing to touch 48 hours.

Starting 3pm on Thursday, the women, several of them in burqas, niqabs and hijabs, are sitting on the road just outside the Haji Sait mosque in Frazer Town in a flash protest. Though they have informed the police, they did not wait for the permission. Around 11 pm, police arrived and shut off the protesters' loud speakers.

Zahira said already four such women's anti-CAA protests were taken out in Bengaluru. Women from all ages groups have joined the protest and are sloganeering.

As the women are protesting on the road, men are guarding them standing on the opposite road, ensuring all supplies such as food and others to them, she added.

"Muslim women were not alone in denouncing the CAA... we were joined by the transgenders, Hindu women, Christian women, Dalits and others, " she said.

Some of the protesters also indulged in creative work such as composing songs against the CAA and making placards.

Though four anti-CAA women's protests happened at the Town Hall and other landmarks in Bengaluru, they were only a few hours long.

The protesting women are also showing support to women protesters at Shaheen Bagh in Delhi who were accused of demonstrating for Rs 500. However, the protest did not align anti-CAA demonstration with any political party, keeping it apolitical.