Mangaluru: ABVP agitators slam govt; demand action against anti-nationals'

Shimoga, May 10: Karnataka Chief Minister B S Yediyurappa was all praise for a nine-month pregnant nurse, who is still attending to work at a Covid-dedicated hospital in the state, braving all odds in the wake of novel coronavirus pandemic.

Roopa, a resident of Gajanur, works at the Sri Jayachamarajendra Taluk Hospital in Tirthahalli.

The Chief Minister called the nurse up and admired her sense of duty after he came to know that she has been turning up at the hospital despite being in the advanced stage of pregnancy.

Mangaluru, May 6: Amidst preparation for the paid evacuation of Indians stuck in Gulf countries amidst coronavirus lockdown, the central government has announced that it would only do a medical screening of the passengers before the flight and only asymptomatic persons would be allowed to travel.

Each passenger will have to fill a self-reporting form to be presented at the health and immigration counter at their destination.

The passengers are required to state whether they are suffering from fever, cough, diabetes or any respiratory disease. This form is similar to the one filled by passengers landing in India during the early days of the COVID-19 outbreak.

As per the announcement by the government, returnees would undergo COVID-19 once they complete 14-day quarantine in a hospital or government –arranged institution on a payment basis.

However, the form asks the applicants to keep themselves isolated at home for 28 days unless they develop any symptoms such as fever and cough.

During the journey, they will have to follow the protocols such as those issued by the Health Ministry and the Civil Aviation Ministry. Applicants from the UAE are yet to receive instructions on these.

On reaching the destination, passengers will have to register on the Arogya Setu app, India’s mobile application for COVID-19 surveillance.

No physical distancing!

Air India Express (AIE) which is set to operate the first two flights to Kerala on Thursday will operate its Boeing 737-800 flights, with a seating capacity of 186 economy class seats.

With nine seats reserved for isolation, only 177 passengers would be flown, sources said.

While most of the UAE flights in the first week will be operated by the AIE, Air India will operate two of its Dreamliner aircraft with a seating capacity of 256 seats. These flights would also reserve some seats for isolation.

However, the plan has made it clear that the Indian government will not be following the rules of physical distancing to prevent the spread of coronavirus in the repatriation flights.

Several people, including the Chief Minister of Kerala Pinarayi Vijayan, expressed concern over flying passengers, who will not be tested for COVID-19, without observing physical distancing.

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