Top US&nbsp;infectious disease expert Dr.&nbsp;Anthony&nbsp;Fauci&nbsp;on Friday&nbsp;has raised concerns over the safety of COVID-19 vaccines being developed by China and Russia as the world scrambles for answers to a pandemic the WHO warned will be felt for decades.

Several Chinese companies are at the forefront of the race to develop an immunity to the disease and Russia has set a target date of September to roll out its own vaccine.

But US infectious disease expert Anthony Fauci said it was unlikely his country would use any vaccine developed in either country, where regulatory systems are far more opaque than they are in the West.

Also read:&nbsp;<a href="https://www.wionews.com/world/covid-19-us-records-66986-new-cases-and-1453-deaths-317411" hreflang="en">COVID-19: US records 66,986 new cases and 1,453 deaths</a>

"I do hope that the Chinese and the Russians are actually testing the vaccine before they are administering the vaccine to anyone," he told a US Congressional hearing on Friday.

"Claims of having a vaccine ready to distribute before you do testing, I think, is problematic, at best."

As part of its own "Operation Warp Speed," the US government will pay pharma giants Sanofi and GSK up to $2.1 billion for the development of a COVID-19 vaccine, the companies said.

Six months after the World Health Organization declared a global emergency, the novel coronavirus has killed at least 679,000 people and infected at least 17.9 million.

Top US infectious disease expert Dr. Anthony Fauci on Friday has raised concerns over the safety of COVID-19 vaccines being developed by China and Russia as the world scrambles for answers to a pandemic the WHO warned will be felt for decades.

Top US infectious disease expert Dr. Anthony Fauci on Friday has raised concerns over the safety of COVID-19 vaccines being developed by China and Russia as the world scrambles for answers to a pandemic the WHO warned will be felt for decades. Several Chinese companies are at the forefront of the race to develop an immunity to the disease and Russia has set a target date of September to roll out its own vaccine. But US infectious disease expert Anthony Fauci said it was unlikely his country would use any vaccine developed in either country, where regulatory systems are far more opaque than they are in the West. Also read: COVID-19: US records 66,986 new cases and 1,453 deaths "I do hope that the Chinese and the Russians are actually testing the vaccine before they are administering the vaccine to anyone," he told a US Congressional hearing on Friday. "Claims of having a vaccine ready to distribute before you do testing, I think, is problematic, at best." As part of its own "Operation Warp Speed," the US government will pay pharma giants Sanofi and GSK up to $2.1 billion for the development of a COVID-19 vaccine, the companies said. Six months after the World Health Organization declared a global emergency, the novel coronavirus has killed at least 679,000 people and infected at least 17.9 million.

US says unlikely to use China, Russia COVID-19 vaccine as race heats up

US vaccine expert Rick Bright who was fired for opposing the chloroquine treatment promoted by President Donald Trump as the cure of the coronvirus pandemic,&nbsp;is to file a whistleblower complaint, his lawyers say.

Under US law, a whistleblower complaint can be filed if a person believes their employer retaliated against them for exercising their rights as an employee.

Also read: <a href="https://www.wionews.com/world/us-vaccine-expert-removed-by-trump-for-opposing-chloroquine-294109">US vaccine expert removed by Trump for opposing chloroquine</a>

"In our filing we will make clear that Bright was sidelined for one reason only -because he resisted efforts to provide unfettered access to potentially dangerous drugs, including chloroquine, a drug promoted by the administration as a panacea, but which is untested and possibly deadly when used improperly," a statement from the doctor's lawyers said.

Also read:&nbsp;<a href="https://www.wionews.com/world/harvard-professor-becomes-a-billionaire-from-stake-in-company-discovering-covid-19-vaccine-294398" hreflang="en">Harvard professor becomes a billionaire from stake in company discovering Covid-19 vaccine</a>

Bright was&nbsp;the director of Biomedical Advanced Research and Development Authority (BARDA), the government agency for developing and procuring treatments and vaccines for&nbsp;against COVID-19.

However, he was removed from this position on Tuesday transferred to a lesser position in the National Institutes of Health.

Bright had claimed that the move was a direct response to his resistance to "misguided directives" to support the use of malaria treatments chloroquine and hydroxychloroquine for coronavirus.

However,&nbsp;Trump had denied the accusation and said that he had "never heard" of him.

US vaccine expert Rick Bright who was fired for opposing the chloroquine treatment promoted by President Donald Trump as the cure of the coronvirus pandemic, is to file a whistleblower complaint, his lawyers say.

US vaccine expert Rick Bright who was fired for opposing the chloroquine treatment promoted by President Donald Trump as the cure of the coronvirus pandemic, is to file a whistleblower complaint, his lawyers say. Under US law, a whistleblower complaint can be filed if a person believes their employer retaliated against them for exercising their rights as an employee. Also read: US vaccine expert removed by Trump for opposing chloroquine "In our filing we will make clear that Bright was sidelined for one reason only -because he resisted efforts to provide unfettered access to potentially dangerous drugs, including chloroquine, a drug promoted by the administration as a panacea, but which is untested and possibly deadly when used improperly," a statement from the doctor's lawyers said. Also read: Harvard professor becomes a billionaire from stake in company discovering Covid-19 vaccine Bright was the director of Biomedical Advanced Research and Development Authority (BARDA), the government agency for developing and procuring treatments and vaccines for against COVID-19. However, he was removed from this position on Tuesday transferred to a lesser position in the National Institutes of Health. Bright had claimed that the move was a direct response to his resistance to "misguided directives" to support the use of malaria treatments chloroquine and hydroxychloroquine for coronavirus. However, Trump had denied the accusation and said that he had "never heard" of him.

US vaccine expert 'ousted' by Trump to file whistleblower complaint

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US says unlikely to use China, Russia COVID-19 vaccine as race heats up

US vaccine expert 'ousted' by Trump to file whistleblower complaint