No place for Dalits and backwards in the heart of Congress: PM Modi

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 3: Delhi's Tihar Prison authorities had made all necessary preparations for the hanging of four convicts in the Nirbhaya gangrape-and-murder case which was scheduled for Tuesday, officials said Monday.

However, on Monday evening, a city court deferred the hanging till further orders.

Postponing the execution, Additional Sessions Judge Dharmender Rana said the hanging cannot be carried out pending disposal of Pawan Gupta's mercy plea before the President, observing any condemned convict must not meet his "Creator" with grievance against courts for not acting fairly on the opportunity to exhaust legal remedies.

"We had made all the necessary arrangements for the execution of the four convicts which was scheduled for Tuesday at 6 AM. Now, the execution has been postponed and we are waiting for the further order by the court," a senior jail official said.

The hanging of the four men -- Mukesh Kumar Singh (32), Vinay Kumar Sharma (26), Akshay Kumar Singh (31) and Pawan -- who are lodged in Tihar jail, was fixed for March 3 in Tihar jail on a court order.

"We had checked the ropes. Hangman was called and dummy executions were carried out," another senior jail official said.

Barring Pawan, the other three had in the previous weeks moved curative petitions and mercy pleas which were all dismissed.

The first date of execution -- January 22 -- fixed on January 7 was postponed by the court to February 1. But on January 31, the court indefinitely postponed the hanging. On February 17, the court again issued fresh date for execution of death warrants for March 3 at 6 AM.

The court in its orders observed that the four convicts cannot be hanged since a mercy plea of one or the other convict was pending.

New Delhi, Jul 25: India reported a spike of 48,916 coronavirus cases on Saturday, according to the Union Ministry of Health and Family Welfare.

The total COVID-19 positive cases stand at 13,36,861 including 4,56,071 active cases, 8,49,431 cured/discharged/migrated. With 757 deaths in the last 24 hours, the cumulative toll reached 31,358.

Maharashtra has reported 3,57,117 coronavirus cases, the highest among states and Union Territories in the country.

A total of 1,99,749 cases have been reported from Tamil Nadu till now, while Delhi has recorded a total of 1,28,389 coronavirus cases.

According to the Indian Council of Medical Research (ICMR), 4,20,898 samples were tested for coronavirus on Friday and overall 1,58,49,068 samples have been tested so far.