Shocking! Cops fight like dogs on road over share of bribe; video goes viral

Mangaluru, Mar 14: Following the avian flu outbreak in neighboring Kerala, authorities at Pilikula Biological Park in Moodushedde, on the outskirts of the city, have taken all precautionary measures to prevent the death of birds in the park.

Park Director H J Jayaprakash Bhandari said that "the behaviour of the birds is being monitored near open water sources on the premises'.

Though no deaths were reported in the Zoo or on lake premises, the staff continue to maintain a strict vigil on open water sources like lakes. He said the Park was being sanitized.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Mar 27: A youth from Dakshina Kannada district, who had returned from United Arab Emirates earlier this month has tested positive for the deadly Covid-19 caused by the novel coronavirus. With this the total of Covid-19 in the district has mounted to seven. 

The fresh Covid-19 patient is a 21-year-old youth hailing from Karaya in Belthangady taluk. 

He had left Dubai on March 21 and land at Bengaluru Airport. Then he reached Belthangady through a KSRTC bus the very next morning. 

As he was suffering from fever and cough, he was admitted to Puttur government hospital on March 24. Same day his throat swab sample was sent for coronavirus testing. Today it was declared positive. 

His condition is said to be stable. However, his family members and those who were in touch with him are under observation.