India country of Hindus first, others later: Sena

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 3: Union Health and Family Welfare Minister Dr Harsh Vardhan on Sunday said that India's COVID-19 mortality rate of 3.2 per cent is the lowest in the world and over 10,000 coronavirus patients have been discharged from hospitals after recovering from the disease so far.

"Today more than 10,000 COVID-19 patients have been discharged. Those still admitted at hospitals are on the road to recovery. If in last 14 days doubling rate was 10.5 days, then today it is around 12 days," the Minister told ANI after visiting Lady Hardinge Hospital.

"Our mortality rate of 3.2 per cent is the lowest in the world," he said.

With 2,644 more COVID-19 cases and 83 deaths in the last 24 hours, the number of people infected from coronavirus in the country has reached 39,980 including 1,301 deaths, said the Union Ministry of Health and Family Welfare on Sunday.

Currently, there are 28,046 active cases while 10,633 COVID-19 positive patients have been cured/discharged.

New Delhi, May 24: India witnessed the biggest ever spike of 6,767 positive cases in the last 24 hours, taking the total number of COVID-19 cases to 1,31,868, according to the Union Ministry of Health and Family Welfare.

As many as 147 deaths have been reported in the last 24 hours, taking the death toll to 3,867.
Out of the total number of cases, 73,560 are active and 54,440 have been cured/discharged and one migrated.

Maharashtra continues to remain the worst-affected state with 47,190 COVID-19 cases. It is followed by Tamil Nadu (15,512), Gujarat (13,664), and Delhi (12,910).

The nationwide lockdown imposed as a precautionary measure to contain the spread of COVID-19 has been extended till May 31.