Sonia Gandhi elected leader of Congress Parliamentary Party

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."

Shimla, Apr 19: A man, who had recovered from the novel coronavirus, was again found suffering from the infection in Himachal Pradesh, officials said.

The man, a Tablighi Jamaat member, tested positive for the infection on Saturday within a week of his two reports coming out negative, they said.

Residents of different places in Mandi district, the man along with two other Jamaatis had been staying in a mosque of Nakroh village in Una'a Amb tehsil and all tested positive on April 2.

They were admitted to Tanda's Dr. Rajendra Prasad Government Medical College (RPGMC) in Kangra district on April 3.

As per the available information, they had tested negative for the first time on April 10 and they were declared as cured as per protocol after they tested negative for the second time on April 12.

Subsequently they had been discharged from the RPGMC and were kept in institutional quarantine.

However, with the man again testing positive, the total number of active cases in the hill state has increased to 23 out of the total 40 positive cases.

Four persons have been shifted to a private hospital outside the state. Eleven have recovered while two others have died.

A total of 16 confirmed cases were found in Una and health department statistics now shows 14 active cases and two cured.

Officials said 11 patients — three each from Chamba, Kangra, and Solan districts and two from Una district — have recovered.

Tehran, Mar 3: Iranian Foreign Minister Javad Zarif on Monday urged Indian authorities to ensure the well-being of all Indians and not let "senseless" violence prevail.

Ministry of External Affairs Spokesperson Raveesh Kumar said on Thursday that law enforcement agencies were working on the ground to prevent violence and ensure restoration of confidence and normalcy.

Mr Kumar has urged international bodies not to make irresponsible statements at this sensitive time. "Iran condemns the wave of organised violence against Indian Muslims. For centuries, Iran has been a friend of India. We urge Indian authorities to ensure the wellbeing of ALL Indians & not let senseless thuggery prevail. Path forward lies in peaceful dialogue and rule of law," Zarif tweeted.

The communal violence over the amended citizenship law in Delhi has claimed at least 42 lives. Frenzied mobs have torched houses, shops, vehicles, a petrol pump and pelted stones at police personnel.