‘Modi’s Kedarnath show after campaign is poll code violation’: TMC complains to EC

London/Milan, Jun 2: World Health Organization experts and a range of other scientists said on Monday there was no evidence to support an assertion by a high profile Italian doctor that the coronavirus causing the COVID-19 pandemic has been losing potency.

Professor Alberto Zangrillo, head of intensive care at Italy's San Raffaele Hospital in Lombardy, which bore the brunt of Italy's COVID-19 epidemic, on Sunday told state television that the new coronavirus "clinically no longer exists".

But WHO epidemiologist Maria Van Kerkhove, as well as several other experts on viruses and infectious diseases, said Zangrillo's comments were not supported by scientific evidence.

There is no data to show the new coronavirus is changing significantly, either in its form of transmission or in the severity of the disease it causes, they said.

"In terms of transmissibility, that has not changed, in terms of severity, that has not changed," Van Kerkhove told reporters.

It is not unusual for viruses to mutate and adapt as they spread, and the debate on Monday highlights how scientists are monitoring and tracking the new virus. The COVID-19 pandemic has so far killed more than 370,000 people and infected more than 6 million.

Martin Hibberd, a professor of emerging infectious disease at the London School of Hygiene & Tropical Medicine, said major studies looking at genetic changes in the SARS-CoV-2 virus that causes COVID-19 did not support the idea that it was becoming less potent, or weakening in any way.

"With data from more than 35,000 whole virus genomes, there is currently no evidence that there is any significant difference relating to severity," he said in an emailed comment.

Zangrillo, well known in Italy as the personal doctor of former Prime Minister Silvio Berlusconi, said his comments were backed up by a study conducted by a fellow scientist, Massimo Clementi, which Zangrillo said would be published next week.

Zangrillo told Reuters: "We have never said that the virus has changed, we said that the interaction between the virus and the host has definitely changed."

He said this could be due either to different characteristics of the virus, which he said they had not yet identified, or different characteristics in those infected.

The study by Clementi, who is director of the microbiology and virology laboratory of San Raffaele, compared virus samples from COVID-19 patients at the Milan-based hospital in March with samples from patients with the disease in May.

"The result was unambiguous: an extremely significant difference between the viral load of patients admitted in March compared to" those admitted last month, Zangrillo said.

Oscar MacLean, an expert at the University of Glasgow's Centre for Virus Research, said suggestions that the virus was weakening were "not supported by anything in the scientific literature and also seem fairly implausible on genetic grounds."

New Delhi, Mar 20: Bodies of the four Nirbhaya convicts who were hanged on Friday morning at Tihar Jail have been sent to hospital for a post-mortem, following which it will be handed over to the families, according to an official.

After the hanging at 5:30 am today, the bodies were taken from Tihar Jail to Deen Dayal Upadhyay (DDU) Hospital for post mortem at around 8:20 am.

Tihar jail Director-General Sandeep Goel said that the bodies will be handed over to the families after the post mortem.

The families, however, will have to give a written undertaking that they will not make a public demonstration of the cremation or burial of the executed person.

The superintendent will also consult the District Magistrate and the Deputy Commissioner of Police for arrangements for the disposal of the body.

The post mortem comes in line with the Supreme Court's order in Shatrughan Chauhan's case in January 2014, which had mandated the same observing that there is a dearth of experienced hangman in the country.

"By making the performance of post mortem obligatory, the cause of the death of the convict can be found out, which will reveal whether the person died as a result of the dislocation of the cervical vertebrate or by strangulation which results on account of too long a drop," the apex court had said in its order.

"Our constitution permits the execution of death sentence only through the procedure established by law and this procedure must be just, fair and reasonable," the order added.

All four convicts in the 2012 Nirbhaya gang-rape and murder case -- Akshay Singh Thakur, Pawan Gupta, Vinay Sharma, and Mukesh Singh -- were hanged till death at 5:30 am this morning.

The case pertains to the brutal gang-rape and killing of a 23-year-old paramedical student in a moving bus on the night of December 16, 2012, by six people including a juvenile in the national capital. The woman had died at a Singapore hospital a few days later.

One of the adults accused had allegedly committed suicide in the prison during the trial, while the juvenile was released from a correction home after a period of three years.