Harassed by teachers and friends, Class 10 girl jumps to death from school building

Mangaluru, Jun 14: A 26-year-old man, who had recently returned to Mangaluru from Maharashtra, succumbed to coronavirus today. With this number of covid-19 deaths in the coastal district of Dakshina Kannada rose to eight.

After returning from Mumbai, he had undergone institutional quarantine on May 28 and 29. Later, he was under home quarantine as he was suffering from kidney related ailment. He completed his home quarantine on June 10.

On June 12, the youth was admitted to the private hospital in the city due to kidney related ailment. He did not respond to treatment and died.

His throat swab sample was tested after which it was confirmed that he was having coronavirus infection also.

Udupi, Apr 8: Six patients were admitted to isolation wards in the hospitals in the district on Tuesday.

While four people were suffering from symptoms of COVID-19, two were suffering from SARI (Severe Acute Respiratory Infection).

As many as 19 samples were collected and sent for Covid-19 testing to a laboratory in Shivamogga.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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