Japan marks 72 years since world's first nuclear attack

Beijing, Apr 17: China denied Friday it had covered up the extent of its coronavirus outbreak, as it responded to growing questions from Western powers led by the United States.

A foreign ministry spokesman acknowledged that the virus's rapid spread had contributed to undercounting that resulted in China raising its death toll earlier Friday, but he added "there has never been any concealment, and we'll never allow any concealment."

The allegations China is too close to the World Health Organization (WHO), were an attempt at "smearing" Beijing, Zhao said.

US President Donald Trump has questioned China's handling of the pandemic and whether it had been completely transparent since the virus emerged in the central city of Wuhan late last year.

On Thursday, British Foreign Secretary Dominic Raab and French President Emmanuel Macron also expressed doubts about China's virus response.

These doubts were spotlighted again on Friday when authorities in Wuhan, which has borne the brunt of Chinese deaths, abruptly raised its death toll by 50 percent -- or 1,290 deaths -- to a new total of 3,869.

That also pushed the nationwide death toll up sharply to 4,632, based on official national data released earlier in the day.

Wuhan authorities cited several reasons for the missed cases, including that the city's medical staff were overwhelmed in the early days as infections climbed, leading to "late reporting, omissions or mis-reporting".

Zhao said such miscounting was to be expected in the initial stages of a major disease outbreak.

US President Donald Trump -- under fire himself for initially denying the seriousness of the pandemic -- has accused the WHO of doing the same and being too trusting of China's assurances over the outbreak.

On Tuesday he announced a suspension of US funding to the world body.

Asked about the US allegations, Zhao defended the WHO and China.

"I think they are all smearing China and cooking up stories about China," he said, without specifying which countries he was referring to.

China has largely brought the contagion under control domestically via tough measures including the unprecedented lockdown of Wuhan and tens of millions of people in surrounding areas, but not before it spread worldwide.

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."

Paris, Apr 10: French pharma major Sanofi said on Friday it has decided to donate 100 million doses of hydroxychloroquine, the anti-malaria drug which could be a potential weapon against novel coronavirus, across 50 countries.

The company has already doubled its incremental production capacity on top of the usual production for current indications across its eight hydroxychloroquine manufacturing sites worldwide and is on track to quadruple it by the summer.

"In this global health emergency, Sanofi stands ready to assist as many countries as possible, starting with countries where its medicine is registered for current approved indications as well as countries where there are no hydroxychloroquine suppliers or countries with underserved populations," it said in a statement.

Sanofi called for coordination among the entire hydroxychloroquine chain worldwide to ensure the continued supply of the medicine if proven to be a well-tolerated and effective treatment in COVID-19 patients.

"The COVID-19 pandemic is an unprecedented health and economic crisis which is shaking some of the very fundamentals of international solidarity and cooperation among countries," said Chief Executive Officer Paul Hudson. "This virus does not care about the concept of borders, so we should not either," he added.

"It is critical that international authorities, local governments, manufacturers and all other players involved in the hydroxychloroquine chain work together in a coordinated manner to ensure all patients who may benefit from this potential treatment can access it. If the trials prove positive, we hope our donation will play a critical role for patients," said Hudson.

While hydroxychloroquine is generating a lot of hope for patients around the world, said Sanofi, it should be remembered that there are no results from ongoing studies and the results may be positive or negative.

To date, there is insufficient clinical evidence to draw any conclusion over the safety and efficacy of hydroxychloroquine in the management of COVID-19 patients.

It is one of several medicines being investigated by the World Health Organisation (WHO) in its international clinical trial seeking a treatment solution for COVID-19. "Sanofi is supporting ongoing trials by providing the medicine to some participating investigator sites and other independent research centres," it said.