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Bengaluru, Mar 13: India has registered the first confirmed case of death due to novel coronavirus. A 76-year-old man from Karnataka's Kalaburgi who passed away recently has been tested positive for Covid-19.

The doctors had suspected that the man had coronavirus, however, the test had not confirmed it.

In an official notification, a senior health official in Karnataka government Dr Suresh Shastri said that the lab test has confirmed that the deceased man had Covid-19.

"The 76-year-old man from Kalburgi who passed away and was a suspected COVID 19 patient has been confirmed for COVID 19. The necessary contact tracing, isolation and other measures as per protocol are being carried out. Telangana government has also been informed since he went to a private hospital there," Dr Suresh Shastri said.

The same information was also shared by Karnataka health minister B Sriramulu.

A senior Union health ministry official said in New Delhi that the death of the man had visited Saudi Arabia from January 29 to February 29. The official said the man had reached in Hyderabad on February 29 and went to Kalaburagi in Karnataka.

State Joint Director (Communicable Diseases) BG Prakash Kumar said all protocols were followed for disposal of the body.

"The body is disinfected completely and disposed of as per the Government of India guidelines," he added when asked to elaborate on the protocols.

He said the Telangana government has also been informed as the man had gone to a private hospital in Hyderabad earlier.

While announcing the death of the man on Tuesday, the state authorities had said the exact cause his death was being ascertained.

According to the Union health ministry official, "While he was asymptomatic on his return (from Saudi Arabia), he developed symptoms of fever and cough on 6th March. One private doctor visited him at his home and treated him there."

"On 9th March, the symptoms got aggravated and he was shifted to a private hospital in Kalaburagi. In this private hospital, he was provisionally diagnosed as 'mid-zone viral pneumonia' and 'suspected Covid-19'," the official said.

"The sample was collected on March 9... Without waiting for the test results, the attendees insisted and the patient was discharged against medical advice and the attendees took him to a private hospital in Hyderabad," the official said.

The patient was admitted to a private hospital in Hyderabad and treated. He died on Tuesday when he was being brought back to the Gulbarga Institute of Medical Sciences (GIMS) in Kalaburagi.

Apart from the deceased, Karnataka has confirmed five other positive cases of the novel coronavirus. The fifth case, confirmed on Thursday is of a 26-year-old man who recently returned from Greece.

The patient has been admitted and isolated at a hospital and his condition is stable, a department media bulletin said.

The day also saw the education department declaring summer holidays for students from kindergarten to class six and study leave for higher classes in the city as a precautionary measure.

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, Jul 2: Former Karnataka Chief Minister HD Kumaraswamy on Thursday accused BS Yediyurappa-led state government of "failure" to protect the citizens from coronavirus, stating that Karnataka was suffering due to lack of co-ordination in the cabinet.

In a series of tweets, the JD(S) leader slammed the state government for wasting their time in giving out contradictory statements regarding COVID-19 figures instead of learning lessons from the Kerala government.

"It is shocking to see COVID-19 patients being turned down by the hospitals due to lack of beds. The government has failed in its duty to protect the citizens. The CM and his cabinet colleagues wasted precious time in mere talking for the last three months. As the escalated Covid numbers stare them in the face, they are now helpless," Kumaraswamy wrote.

"Even when you have a proven model in Kerala government's success in Covid management, the ministers waste time in issuing contradictory statements and doing nothing. Karnataka suffers due to lack of co-ordination in the cabinet," he said.

Urging the government to act together, he said that if the government does not get its act together, the day is not far when Covid patients would be "condemned to die on the streets."

We are already seeing heart-wrenching stories of patients denied treatment," he added.

Kumaraswamy also appealed to the Karnataka government to consider the suggestions he had made earlier and not to indulge in party politics in these testing times.

"I appeal to the government to consider the suggestions I made earlier and act accordingly. This is not the time for party politics."