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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."

The euphoria over the claim that around 3,000 tonnes of gold reserves, worth Rs 12 trillion, have been discovered in Uttar Pradesh’s Sonbhadra district could not last even 24 hours, with the Geological Survey of India (GSI) clarifying on Saturday there had been no such discovery.

The GSI, headquartered in Kolkata, rebutted the claims of the Uttar Pradesh Directorate of Geology and Mining (UPDGM), and said “miscommunication” must have led to the wrong reporting of facts.

M Sridhar, director general of the GSI, said nobody in the agency gave any such data. He said 52,806 tonnes of gold ore was found in Sonbhadra district during the exploration work in 1998-2000. From this reserve, only 160 kg of gold can be extracted.

“There must have been some miscommunication of facts because of which the gold ore deposits have been overestimated. We have written a letter to Uttar Pradesh (UPDGM), stating the facts. The GSI has not estimated such kind of vast resource of gold deposits in Sonbhadra,” Sridhar said.

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The UPDGM had said on Friday that gold deposits were found in Son Pahadi and Hardi areas of the district. Sridhar said while gold ore was found in the area during the GSI’s exploration work in 1998-2000, it had told the state government about the discovery in November last year.

Under the new regulation, which came into effect from 2015, the GSI has to inform the state government when ore deposits are discovered. Earlier, no such action was mandatory. In its report, the GSI estimated that only 3.03 gm of gold can be extracted from a tonne of ore. It also clarified that even the extraction amount was tentative and could not be established for certain.

Moreover, Sridhar said the deposits were spread across only 0.5 sq km in forest land, which made the mining of ore economically unviable. “When there are several mines nearby, we can club it into a block and then it makes sense to mine the ore. But in this case, the deposits are too small to make it viable for any company to mine it,” he said. The GSI usually prioritises its exploration work based on the needs of the Centre. While strategic minerals like tin, cobalt, lithium, beryllium, germanium, gallium, indium, tantalum, niobium, selenium, and bismuth are atop the list in GSI exploration, gold is another commodity on its priority list.

According to the World Gold Council, India has reserves of 630 tonnes of gold.

Thiruvananthapuram, Jul 12: At least 66 children have ended their lives in Kerala since the Covid-19 lockdown began on March 25 with youngsters facing stress unable to bear the unprecedented situation where schools are shut and friends are out of reach to share their woes.

According to Chief Minister Pinarayi Vijayan, there has been an increasing instance of suicidal tendencies among children in the state due to various reasons, including parents scolding them over mobile phone use and failure to attend online classes.

This has prompted the government to launch a teleconsultation facility for children facing stress and also cautioning parents against hurting their sentiments while being concerned about welfare of their wards. It has also ordered a study into the issue. "Among the children an increasing instance of suicidal tendency is being witnessed which will become an extremely serious social issue.

Since March 25, when the national lockdown was imposed, 66 children, below 18 years of age, have ended their lives due to various reasons", Vijayan said. A mother scolding her child for not attending the ongoing online classes, or a parent questioning a child for downloading a sleazy video on the smartphone or the constant rift between the parents were among the reasons which triggered the suicidal tendency, he said on Saturday.

As the schools have not yet re-opened due to the lockdown, the children are unable to meet their friends and share their problems. Vijayan said though the parents were intervening keeping in mind their child's welfare, it was essential to ensure that the young minds were not hurt in the process. To helpthe children facing issues relating to mental pressures, 'Chiri'atele-counselling initiative has been started by the government under its Our Responsibility to Children Programme (ORC), a planned community intervention that connects with people between the age of 12-18 years. The state health department has also launched "Ottakalla Oppamundu" (You are not alone,we are with you) programmeto help children facing any kind of mental distress and to prevent the suicidal tendencies among them.

Health Minister K K Shailaja said under the psychosocial support assistance, her department has so far reached out to 68,814 children and 10,890 children have been given counselling. The changes in the behaviour of their children should be noted by the family members and if they find something amiss, the district psychosocial help desk should be informed, she said. A 15-member team of Students Police Cadets will be constituted in each of the 14 districts to help the children needing any assistance,police sources said. Education should not be a competition, but a means to gain knowledge, Vijayan said.

A society's future lies with the children and it is the duty of the society and the government to ensure their physical and mental well being. Taking a serious view of the situation, the state government has constituteda committee headed byFire and Rescue Services DGP R Sreelekha to conduct a study on child suicides in the state. The aim of the ORC was also to create a multi collaborative platform for government and professional agencies, parents and teachers to equip youth with appropriate know-how to face challenges, officials said.