Chain snatching: Ullal CMC chief officer's son among 2 arrested

Udupi, Jul 16: With two deaths in a single day, and receiving coronavirus positive report of a person who died two days ago, Udupi district’s covid-19 death toll today mounted to eight. 

A-49-year-old resident of Udupi, was admitted to Ajjarkad government hospital for other ailments. He was suffering from multiple health issues like diabetes and respiratory problems.

Last night he was tested positive for coronavirus and hence he was shifted to Dr TMA Pai COVID hospital in Udupi where he breathed his last today. 

A 54-year-old man from Maravanthe in Byndoor taluk, who was suffering from asthma, today died while being taken from one hospital to the other.

He was admitted to a private hospital in Kundapur on the evening of Wednesday. Today he was being shifted to Manipal hospital. However he breathed his last half way through.  

His body was taken back to Kundapur and throat swab of the deceased was sent for testing. As the sample of the deceased person was taken using rapid test kit, his report was available within half an hour and it showed positive for covid-19. 

Meanwhile, throat swabs of a man from Ankola in Uttar Kannada district, who passed away in Manipal Hospital on July 14, were tested positive today. His funeral was held at the Beedinagudde crematorium as per the COVID norms.

Kasaragod, Apr 10: The death of five cats in the general hospital-turned-Covid-19 isolation centre here recently has evoked a little bit of scare among the health authorities who are eagerly awaiting the viscera test results of the dead animals.

The death of the cats has evoked anxiety in the backdrop of a tiger in a zoo in United States tested positive for Covid-19 recently.

It was recently that the hospital authorities had noticed the death of the cats, which include two male and a female adult and two kittens, were long been seen in and around the hospital compound.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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