NRI, returning home after 32 years, dies at Abu Dhabi airport

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bengaluru, Mar 11: With the outbreak of coronavirus, Chief Minister BS Yediyurappa on Tuesday said that over 1,000 people in the state have been identified for observation.

"So far, 1048 people have been identified for observation. Out of which 446 samples have been sent for testing. 389 samples have tested negative. Four samples have tested positive," Chief Minister Yediyurappa told reporters.

Earlier today, Health Minister B Sriramulu said that family members of those who tested positive for COVID-19 have been isolated and their health is being monitored.

Mangaluru, Jun 19: Mohammad Haneef Guddemane, a cattle trader, who was thrashed by the miscreants of Bajrang Dal while legally transporting cattle last weekend, today appeared before media and demanded appropriate action against the assailants.

The attack took place on June 14 at Urwa in the city when he was transporting four buffalos along with all necessary documents. The attack was also captured on a CCTV camp. 

The victim, who addressed a press conference today, said that it was not the first time he is transporting cattle as into animal and husbandry for years. 

“I had bought 10 she-buffaloes on June 13 from Ranennur and obtained certificate from the local government veterinary doctor after which the animals were brought to my village,” said Haneef, who is a resident of Jokatte on the outskirts of the city. 

He said that he was transporting four out of the ten she buffaloes he had bought to the slaughterhouse at Mangaluru on June 14 when a gang of around 15 members which intercepted his vehicles near Urwa police station dragged him out of the vehicle, rained abusive words at him, made blasphemous remarks about his religion, and hit him with a helmet besides kicking him. 

He said that three of the assailants were armed with sabre, iron rod and wooden sticks. 

"They also tied me to the vehicle and assaulted. They also attacked me with their arms but I escaped. Their plan was to kill me. Fortunately, the police reached the spot and the assailants escaped. However, they thoroughly damaged my vehicle and robbed Rs 7,800 I had with me. I got treated at Highland Hospital in the city," he stated.

Expressing shock over the soft corner approach of the police towards the assailants, he said that only six of around 15 attackers were booked by the police. 

“All the accused were let off by the police after registering petty cases. Ironically, the police had not recorded my statement. On the day of attack, they had asked me to sign on a paper. It contained the complaint written by themselves. Hence, on June 17 I visited the Urwa police station and recorded my statement,” he said.

He said that even though he has all the documents pertaining to the cattle that he had purchased, the police had registered false cattle theft charge against him. 

Former city mayor K Ashraf, Hyder, bother of the victim and Shamsuddin, Jokatte gram panchayat vice president were present at the press meet.

Also Read: Mangaluru: Bajrang Dal men thrash cattle trader after waylaying buffalo-laden vehicle