Nipah virus infection: Death toll mounts to 11 in Kerala

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Feb 12: Mohammed Nalapad, the rogue son of Karnataka Congress leader NA Harris, who is out on bail in a 2018 case of him bashing up a man at a pub, has now rammed his luxury car into vehicles, injuring four people on Bengaluru road.

The incident took place on Sunday on the Ballari Road where Nalapad was rash driving his car. The car hit a biker and an autorickshaw, injuring four people. He immediately got off his car and fled riding a friend's car.

The biker has suffered a fracture in his leg and is undergoing treatment at a hospital.

According to police, soon after the accident a man appeared before police to claim responsibility for the accident.

Ravikante Gowde, Joint Commissioner of Police said, "A man named Balakrishna came to surrender as the one who was driving the car. Investigation has, however, showed that it was Nalapad who was driving when he met with the accident. The investigating officer has issued him a notice to appear before the police."

BJP spokesperson S Prakash has said, "A case under the Goonda Act should be filed against Nalapad and the court should take cognisance of this and cancel his bail. The father has no control over son. He is a serial offender who is harming the public on a repeated basis."

Nalapad was earlier arrested in 2018 in the Bengaluru pub incident in which he and his associate bashed up the son of a prominent businessman in the city. Nalapad Harris is out on bail after remaining in judicial custody for three months in the case of attempt to murder after the 2018 midnight brawl.

Hubballi, Jan 6: Elected representatives of the BJP, Congress and JD(S) on Sunday decided to sink their differences and fight unitedly for Karnataka’s rightful share in the Mahadayi and Kalasa-Banduri water dispute with Goa.

The meeting convened by JD(S) MLC Basavaraj Horatti here saw participation of BJP ministers Prahlad Joshi and Jagadish Shettar, Congress and JD(S) lawmakers, among others.

After a 70-minute closed door meeting, MLC Horatti told reporters that they discussed the water dispute in detail and decided to take steps based on inputs from legal and technical experts on the rightful apportioning of water. “Today, we took the first big step towards the overall development of the region, unencumbered by political divisions,” he said.

Though the air was filled with a sense of jubilation as the issue had united seemingly hostile political parties on one side, a few activists expressed disappointment that the meeting failed to set a timeline to resolve the dispute.