Kargil martyrs Hasan Sab, Basappa Patil laid to rest in Karnataka

Udupi, Jun 4: Karnataka Medical Education Minister Dr K Sudhakhar on Wednesday said that he will take up an issue before a high-powered committee on COVID-19 to find out the possibility of imposing lockdown on a particular house of the person infected with the virus instead of sealing down of entire areas.

Talking to reporters here on Tuesday after reviewing the district's prevailing COVID situation, the minister said the concept and modalities of declaring any area as containment zone has undergone changes in the last two months.

"Hitherto, we were declaring the entire area as the containment zone after detection of coronavirus positive cases. Subsequently, the area of the containment zone was decreased from the whole area to a particular street," the Minister said.

"Now, BJP MLA Raghupati Bhat has given a suggestion to seal down a particular house of the positive patient which would be taken up before the high-powered panel. The district administration concerned could supply all essential items to the particular family," he said.

He further said that the Union government has been providing all facilities to all the states to deal with the situation."

Bengaluru, Apr 15: Karnataka and five other states have their coronavirus antibody test kits stuck in China because of the country's new policy of getting clearance from their government before a company exports its products.

Singapore-based Sensing Self Ltd and China’s Wondfo are the only companies that have cleared Pune's National Institute of Virology (NIV)’s validation for rapid antibody test kit.

Dr CN Manjunath, Director, Jayadeva Institute of Cardiovascular Sciences and Research, and nodal officer for COVID-19 lab testing, Karnataka, said, "Inventory is ready in Hong Kong Airport. Karnataka's consignment is stuck with five other states' consignments: Kerala, Andhra Pradesh, Rajasthan, Gujarat, and Meghalaya. On April 1 or 3, China's policy changed saying any exports going out of China has to be certified by the Chinese government."

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