Cattle transporter assaulted by Hindutva group amidst Modi's warning

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Apr 29: District in-charge Minister Kota Srinivas Poojary on Wednesday inaugurated a mobile fever clinic to cure COVID-19 patients.

Karnataka State Road Transport Corporation (KSRTC) has converted one of its buses into a clinic in Mangaluru to treat COVID-19 patients.

The mobile fever clinic has a bed for the patient and a cabin for the doctor. There is also a seating facility, medicine box, wash-basin, sanitizer, soap oil, a separate water facility, and fans.

Mangaluru, Jul 2: Mangaluru BJP Corporator Manohar Shetty, who entered a manhole to clean a drain, said that he did it to avoid waterlogging ahead of monsoon as people were facing several problems for the past few years.

"In my ward, there is a rainwater drain at Kadri Kambla junction and for the past few years, there was a waterlogging problem due to trash water used to collect and vehicles used to find it difficult to pass in that area," Shetty said.

"Since there was a lot of trash it had to be cleared to avoid waterlogging. We changed our dresses, and then I along with my three party workers entered manhole and cleared the trash," he said.

The Mangaluru BJP Corporator further said that it was not a publicity stunt, and he cleaned the drain to solve the problem of people. "During elections, I had promised people to get the drain cleaned. Since monsoon was coming; something had to be done; we did not do it for publicity but to solve a problem," he said.