A Dalit leader should become CM of Karnataka, says Parameshwara

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Apr 17: Forty-four new cases of coronavirus have been reported in the State till now, said Karnataka's Health Department on Friday.

"44 new COVID-19 cases reported in the State from 5 pm Thursday to 5 pm on Friday. The total number of positive cases in the State is 359 including 13 deaths and 88 discharges," said the Health Department.

Meanwhile, a meeting was convened to review the situation on the rising cases of coronavirus in the State. According to Karnataka Chief Minister's Office (CMO), the meeting was attended by Chief Minister BS Yediyurappa, Home Minister Basavaraja Bommai, Health Minister B Sriramulu, and Deputy Chief Minister Ashwath Narayan.

The CMO said: "Earlier we used to do 500 tests per day. Now we are doing 2,000 tests. The suggestion was made to take care of the people who are in the ICU to prevent death. It was suggested and planned to work out a protocol for the treatment of COVID-19 patients all over the state."

The meeting also stressed the need for plasma treatment. Experts opined that people having influenza-like symptoms like fever, cold, breathlessness, etc., need to get tested for COVID 19.

The CMO said: "Officers were directed to conduct tests of the people with influenza-like symptoms in the districts where nil cases have been reported. ICMR has issued circular to set up two labs in each district and one lab in each medical college. In this direction, efforts are being made to set up 10 more labs in the State by the end of April."

"It was also decided to be prepared for treating an increased number of patients after relaxing in lockdown. It was also decided to issue guidelines to companies that would start working after relaxing lockdown. It was also decided to appeal to people to download Arogya Setu App. We will meet on April 21 again to decide further course of action," added the CMO.

Mangaluru, Mar 12: Deputy Commissioner Sindhu B Rupesh on Thursday said that the test reports of the 35-year-old passenger from Dubai have shown no signs of either Coronavirus (COVID-19) or H1N1.

In statement issued here Ms Rupesh said that the passenger has now been discharged from the Bantwal hospital. He has been asked to stay at home quarantined for the next 14 days.

The passenger, who had been diagnosed with fever after he arrived at the airport from Dubai on March 8, had left the Government Wenlock Hospital in the early hours of March 9 refusing to undergo tests.

Later, he was traced and admitted to the hospital in Bantwal and his throat swab samples had been sent to Viral Research Diagnostic Laboratory (VRDL) in Hassan Institute of Medical Sciences.

Meanwhile, throat swab samples of six patients were also found negative for COVID-19.

As many asf 49 people were under quarantine in the district of which five have completed the 28-day cycle.

All passengers arriving by international flights and those in contact with them should voluntarily report to the district health team and undergo self-quarantine for 14 days. If there were symptoms of cough, cold and fever, they should undergo tests for COVID-19. If the reports were positive for COVID-19, then they have to stay in the isolation ward of the Government Wenlock Hospital or in the seven select private hospitals for 28 days.

Screening facility at the airport has been strengthened by posting doctors from seven private medical colleges on rotation basis. These doctors would be in addition to the medical officer at the airport. An ambulance has been placed at the airport exclusively to shift people to the hospitals, she added.

The State government has issued a notification on Wednesday authorising Deputy Commissioners to get the affected admitted by force, if necessary.