Hindu Jagarana Vedike holds bandh against Chaithtra Kundapura in DK’s temple town

Mangaluru, Apr 6: City Police Commissioner Dr P S Harsha has directed coastal security personnel to block the boat service near Talapady after reports of Kasarogod people using boats to cross over to Dakshina Kannada via Talapady river emerged, Dakshina Kannada District in-charge Minister Kota Srinivas Poojary said here on Monday.

Following the rise in Coronavirus cases in the neighbouring Kasargod district, District Commissioner Sindhu Roopesh ordered closure of borders with Kerala and totally suspended vehicular movement, including for medical emergencies.

However, now the people living in Talapady and surrounding areas allege that the government has failed to monitor people using boats to cross over to Dakshina Kannada via Talapady river.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Suhaana shuddered with fear as she heard violent banging on her door on Sunday. The atmosphere was charged with communal tension after thousands of ruthless goons supporting contentious Citizens Amendment Act (CAA) launched a bloody onslaught against Muslims in the capital of India.

The family consists of Suhaana (name changed), her partially paralysed husband and two daughters. They are the only Muslim family in Madhuban mohalla of North Ghonda locality in north-east Delhi.

Hearts pounded louder than pounding of the door. Then the banging stopped and noises of men talking loudly came.

"I peeped out from a small window near the kitchen and saw our neighbours standing outside our entrance and arguing with 10-15 unknown people," Suhaana said.

It was the first day of the communal violence, worst in the decades, that fanned out to the entire north-east Delhi over the next three days and claimed at least 42 lives, left over 200 injured and properties worth crores destroyed. The death toll is feared to go up.

Later in the night Suhaana's family moved to one of their Hindu neighbour's house. There are about 30 Hindu households in the mohalla who kept vigil as the atmosphere deteriorated.

The next day, the violence escalated. The neighbours decided to shift Suhaana 's family to Gautampuri for their safety.

Suhaana recounted, "Our neighbours assured us that they are with us but as things were deteriorating, they said they wouldn't be able to protect us if a big mob of hundreds came. They advised us to move to the nearby Gautampuri locality and come back only after things become normal."

Rajkumar Bharadwaj brought the family to Gautampuri in the early hours on February 25.

Anil Gupta, 49, said, "It was tough to rescue them. We were asked by the rioters as to why we were saving the Muslims. But we had to, it is the people of my country who are suffering. It cannot be Hindus or Muslims."

Rajkumar Bharadwaj said, "Their youngest clung to me throughout. After I brought them here at Gautampuri, I felt good. Situation till then was not okay."

On Saturday, some semblance of normalcy returned to parts of north-east Delhi with some people opening their shops amid heavy police presence.

Meanwhile, the morbid sight outside GTB Hospital's mortuary, agonising groans in the hospital wards burnt down houses and shops remind Suhaana and others what they have been spared of.