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."
Comments
what you know about HAJJ, first you try to learn your religion man you maron...you know in veda says there is no image of GOD, dont follow donkey, follow hindu scripture, first of all dont know what is hindu religion and goes to show finger on MUSLIM, look at you face in mirron and ask yourself do you following GODs religion or Devil religion...who is your god bootha or pure GOD.
dont act like maron of hindu community, think before comment, any thing happens to hindu then they blame muslim, what a joke,,there is saying that 80% dogs are worried about 14% lion in forest..haha
yo naresh, first try to learn veda the hindu scripture. which says there is no image of god..if you follow poojari then go to hell, who told muslims are not allowed, did you went any time to masjid to see how it is operated. you maron always behind bar and worship stone, how will your brain develop..first try to become good hindu then you can point muslim.
In most of the masjids having seperate place for woman also... better at least provide seperate way for hindu woman in temples to avoid mingling .... above judgement is on internal issue of hindu custom issue , why dragging muslims to it ?
According to North states' people and BJP people, there is a chance of flood again in Kerala, becuase SC challenged GOD. Those north state fools said that Kerala Flood was aftermath of Sabarimala verdict. Even RBI official backs the statement
Actually 99 percent of women in Kerala following the rule. They are waiting for their turn. Its like hajj. You people wont understand that. Some fools filed petition in order to destroy Hindu religious customs and traditions and muslim lawyer advocated for that. Now everything perished
Silly issue got more hype.
All bloody activists wants to destroy Hindu religion thats it. They won't raise voice against inequalities in Islam. They won't question their customs.
So called activitsts not protesting against inequalities among muslims. Why muslim girls cant enter in to mosque for offering namaz. Why they have seperate one.
Gender equality won
Add new comment