Yeddyurappa will be Karnataka CM for next five years: Sadananda Gowda

Bengaluru, May 29: Karnataka reported 248 new cases of coronavirus on Friday, and with that, the state tally surged to 2,781. 

A 50-year-old woman, resident of Chikkaballapura district, succumbed to the infection on Friday. She was admitted to a private hospital on May 24 following acute kidney injury and pneumonia. As her condition deterorted, she was shifted to a designated hospital in Bengaluru Urban on May 28, where she tested COVID-19 positive.

Out of the 248 cases, only 16 persons have contracted the virus inside the state. The remaining are the people who have returned from Maharashtra, Delhi, Andhra Pradesh, Tamil Nadu and Ireland.

The maximum number of people, who tested positive for COVID-19, have returned from Maharashtra. Most of these people are residents of Udupi, Kalaburagi, Yadagiri and Raichuru.

Besides, five people have a travel history to Delhi, while one person each has tested positive on returning from Andhra Pradesh, Tamil Nadu, Rajasthan and Ireland.

Fifteen people have tested positive within the state and have been infected by persons who had previously tested positive or have a history of Influenza-like Illness and Severe Acute Respiratory Illness.

Out of all the cases, 10 have been reported in Bengaluru Urban while one has come up in Bengaluru Rural.

Meanwhile, on Thursday, the Karnataka government asked the Civil Aviation Ministry to reduce the number of flights coming in the state from the five worst-hit states -- Maharashtra, Tamil Nadu, Gujarat, Madhya Pradesh and Rajasthan.

"Karnataka has appealed to the Civil Aviation Ministry to take steps to lessen the air traffic to the state, with the sacred intention that there may not be adequate quarantine facilities if there is a huge turnout in a short span of time," state Law and Parliamentary Affairs Minister J.C. Madhuswamy explained.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 4: A total of five people suspected of being infected with Coronavirus have been admitted to the isolation wards of Rajiv Gandhi Institute of Chest Diseases in Bengaluru.

Samples of these patients have been collected and their reports are likely to be received later today.

Karnataka Chief Minister BS Yediyurappa has assured people in state about preparedness to tackle Coronavirus.

Earlier in the day, Union Health Minister Dr Harsh Vardhan had said that there were 28 cases of Coronavirus in the country and added that universal screening of all international flights will begin to control the spread of the deadly virus.

Global deaths due to Coronavirus outbreak have risen above 3,000.