Cong MLA Haris’ son Mohammed Nalapad surrenders; case takes a political turn

Bengaluru, Jun 10: The Karnataka government on Wednesday said coronavirus tests conducted in the state has crossed the four lakh mark, while the recovery rate remained at 44 per cent.

Sharing the daily COVID-19 bulletin on his Twitter handle, Medical Education Minister Dr K Sudhakar said till Tuesday 4,00,257 samples were tested in 71 COVID-19 testing labs across the state.

"Karnataka crossed 4 lakh tests mark on Tuesday. So far, we tested 4,00,257 samples in 71 #COVID19 testing labs across the state with a positivity rate of 1.4 per cent," he said.

He tweeted that the state's recovery rate remained healthy at 44 per cent with 2,605 discharges and 5,921 cumulative cases.

The minister said Karnataka was home to nearly a tenth of the total testing labs in India.

According to the Karnataka Health department, out of the four lakh odd samples tested, 3,87,027 samples were reported negative.

The total active cases in the state as on Tuesday evening were 3,248 whereas 66 people lost their lives to coronavirus so far.

Major contributors to the spike in COVID-19 cases in Karnataka are those who returned from Maharashtra recently.

Bengaluru, Apr 19: With six new cases of COVID-19 in the last 24 hours, Karnataka's total count of coronavirus patients has surged to 390, said the State's Health Department on Sunday.

"Six new cases have been confirmed for COVID-19 in the State from 5 pm yesterday till 5 pm today. Cumulatively, 390 COVID-19 positive cases have been confirmed in the state," said the Health Department in a statement.

The total coronavirus cases in the State include 16 deaths and 111 discharges.

Deputy Chief Minister CN Ashwath Narayan said that "only essential and critical number of" employees of the Information Technology (IT) companies will be allowed to work from offices from April 20 onwards in Bengaluru, while others will have to continue working from home.

According to the latest update by the Ministry of Health and Family Welfare, the total number of positive cases in India has mounted to 16,116 and 519 deaths have been reported till now.

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