Mangaluru: Hostels sending back students; hotels too hit by water crisis

Dammam, May 29: A woman hailing from Mangaluru, who was waiting for repatriation amidst coronavirus lockdown in Saudi Arabia, passed away yesterday after a brief illness.

The deceased has been identified as Lateefa (55), wife of Abdul Azeez, a resident of Angaragundi near Baikampady on the outskirts of the city.

She had flown to Saudi Arabia in November 2019 along with her husband to spend some time with their NRI son in Dammam. They were supposed to return in April this year.

After the sudden cancellation of regular flights due to lockdown, they were waiting for the repatriation flights from Dammam to Mangaluru or Bengaluru.

Meanwhile, Lateefa’s health condition worsened and she was hospitalised. She passed away on Thursday without responding to any treatment. Last rites are expected to take place in Dammam.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 21: The news and public relations department, the Indian Red Cross Society and the Karnataka State Labour Studies Institute have invited volunteers for the programme to provide real-time information to people to avoid spreading rumours and misinformation about coronavirus.

This is an opportunity to join hands with the Karnataka government and fight coronavirus. These volunteers will be known as the "Corona Warriors", who will be entrusted with the job of monitoring social media sites to check rumours that are being spread across all taluks in the state. They will also take steps to provide proper information.

Applications are already being shared online and registered volunteers will be provided with appropriate training, security kits and identification cards at all district offices of the Department of Information and Public Relations.

At least four volunteers will work in four shifts per day in each taluk of the state. There are about 120 volunteers in Bengaluru city and about 3,000 Corona Warriors are expected to register from across the state. Over 400 volunteers have registered via online application on the first day.

Fifteen people have tested positive for COVID-19 in the state, said Karnataka Health Minister B Sriramulu on Friday.