Hope no Kejriwal will emerge from my movement again: Anna Hazare

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, May 30: The Congress on Friday described the first year of the Modi government as a "year of disappointment, disastrous management and diabolical pain".

Congress leader K C Venugopal said the six years of the Modi dispensation have seen fraying of bonds of empathy, fraternity and brotherhood with increase in acts of communal and sectarian violence.

Congress chief spokesperson Randeep Surjewala said that at the end of six years, it appears the Modi government is at war with its people and is inflicting wounds on them, instead of healing them.

"It is inflicting wounds on Mother India," he said.

"This government is trying to fill coffers of the select rich and is inflicting pain on the poor," Surjewala said.

On the BJP's charge of the Congress playing politics over the COVID-19 crisis, Venugopal said the opposition party did not indulge in any politics and gave suggestions instead.

"Being a responsible opposition, it is our duty to raise the problems faced by the common people. As opposition, we highlighted the failures of the government," he said.

Venugopal said the government "is totally insensitive" to the plight of migrant labourers and farmers.

Surjewala also demanded that a virtual session of Parliament be convened immediately to discuss pressing issues and the due process be set in motion for holding of meetings of various parliamentary committees.

Modi and his cabinet had taken oath on this day last year for a second term in office.