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Jun 4: A malaria drug President Donald Trump took to try to prevent COVID-19 proved ineffective for that in the first large, high-quality study to test it in people in close contact with someone with the disease.

Results published Wednesday by the New England Journal of Medicine show that hydroxychloroquine was no better than placebo pills at preventing illness from the coronavirus.

The drug did not seem to cause serious harm, though -- about 40% on it had side effects, mostly mild stomach problems.

 “We were disappointed. We would have liked for this to work,” said the study leader, Dr. David Boulware, an infectious disease specialist at the University of Minnesota.

“But our objective was to answer the question and to conduct a high-quality study,” because the evidence on the drug so far has been inconclusive, he said.

Hydroxychloroquine and a similar drug, chloroquine, have been the subject of much debate since Trump started promoting them in March.

Hydroxychloroquine has long been used for malaria, lupus, and rheumatoid arthritis, but no large studies have shown it or chloroquine to be safe or effective for much sicker patients with coronavirus, and some studies have suggested the drugs may do harm.

Trump took a two-week course of hydroxychloroquine, along with zinc and Vitamin D, after two staffers tested positive for COVID-19, and had no ill effects, according to results of his latest physical released by his doctor Wednesday.

Federal regulators have warned against hydroxychloroquine's use except in hospitals and formal studies because of the risk of side effects, especially heart rhythm problems.

Boulware's study involved 821 people in the United States and Canada living with someone diagnosed with COVID-19 or at high risk of getting it because of their job -- doctors, nurses, ambulance workers who had significant exposure to a sick patient while not wearing full protective gear.

They were randomly assigned to get either the nutrient folate as a placebo or hydroxychloroquine for five days, starting within four days of their exposure. Neither they nor others involved in the research knew who was getting which pills.

After 14 days in the study, 12 per cent on the drug developed COVID-19 symptoms versus 14 per cent in the placebo group, but the difference is so small it could have occurred by chance, Boulware said.

“There's basically no effect. It does not prevent infection,” he said of the drug. Even if it were to give some slim advantage, “we'd want a much larger effect” to justify its use and risk of side effects for preventing illness, he said.

Results were no different among a subgroup of participants who were taking zinc or vitamin C, which some people believe might help make hydroxychloroquine more effective or fight the coronavirus.

There are some big caveats: The study enrolled people through the Internet and social media, relying on them to report their own symptoms rather than having them tracked in a formal way by doctors.

Participants were not all tested for the coronavirus but were diagnosed as COVID-19 cases based on symptoms in many cases. And not all took their medicines as directed.

The results “are more provocative than definitive,” and the drug may yet have prevention benefits if tried sooner or in a different way, Dr. Myron Cohen of the University of North Carolina at Chapel Hill wrote in a commentary in the journal.

Others were glad to see a study that had a comparison group and good scientific methods after so many weaker reports on hydroxychloroquine.

“This fits with everything else we've seen so far which suggests that it's not beneficial," said Dr. Peter Bach, director of a health policy center at Memorial Sloan Kettering Cancer Center in New York.

This study was in younger relatively healthy people, but the results “would make me very discouraged about trying to use this in older people” who are most vulnerable to serious illness from the coronavirus, Bach said.

“If it does work, it doesn't work very well.” Dr. Dan Culver, a lung specialist at the Cleveland Clinic, said there's still a chance that giving the drug sooner than four days after someone's exposure to the virus may help prevent illness.

But the study “takes 'home run' off the table” as far as hopes for the drug, he said.

The study was mostly funded by David Baszucki, founder of Roblox, a California-based game software company, and other private donors and the Minnesota university.

Boulware also is leading a study testing hydroxychloroquine for treating COVID-19. The study is finished and results are being analyzed now.

On Tuesday, the journal Lancet posted an “expression of concern” about a study it published earlier this month of nearly 15,000 COVID-19 patients on the malaria drugs that tied their use to a higher risk of dying in the hospital or developing a heartbeat problem.

Scientists have raised serious questions about the database used for that study, and its authors have launched an independent audit.

That work had a big impact: the World Health Organization suspended use of hydroxychloroquine in a study it is leading, and French officials stopped the drug's use in hospitals. On Wednesday, the WHO said experts who reviewed safety information decided that its study could resume.

Washington, Jul 9: The United States recorded 55,000 new coronavirus cases in 24 hours on Wednesday (Thursday in Malaysia), a tally by Johns Hopkins University showed, bringing its total to 3,046,351 recorded infections since the pandemic began.

The country, the hardest-hit in the world, had earlier on Wednesday passed the grim milestone of three million infections. The actual number is likely far higher due to issues over getting tested in March and April.

The US also added an additional 833 virus deaths, bringing the death toll to 132,195, the Baltimore-based institution showed at 8.30pm (0030 GMT Thursday).

US President Donald Trump regularly downplays the numbers, attributing them to an increase in testing capacity during the month of June.

Coronavirus cases are surging in several southern hotspots including Texas, Florida, Louisiana and Arizona, but the pandemic has almost entirely receded from its former epicentre in New York and the north-east.

Several states have been forced to suspend their reopening processes or even reverse course, with some ordering bars to close again.

On Wednesday morning, Trump called on schools throughout the country to reopen in the fall, lashing out at his own top health agency to ease health and safety requirements aimed at slowing the spread of the virus, such as social distancing.

Washington, Apr 8: President Donald Trump has threatened to put a "very powerful" hold on US' funding to the World Health Organization, accusing the UN agency of being "very China centric" and criticising it for having "missed the call" in its response to the coronavirus pandemic.

Trump slammed the global health agency for its early guidance aimed at countering the international spread of the coronavirus.

"We're going to put a hold on money spent to the WHO. We're going to put a very powerful hold on it and we're going to see. It's a great thing if it works. But when they call every shot wrong, that's no good," Trump told reporters at his daily White House news conference on Tuesday.

The Geneva-headquartered World Health Organization (WHO), receives vast amounts of money from the United States.

"We pay for a majority or the biggest portion of their money. They actually criticized and disagreed with my travel ban at the time I did it. They were wrong. They've been wrong about a lot of things. They had a lot of information early and they didn't want to - they're very - they seem to be very China centric," Trump said.

The president said his administration was going to look into the US funding to the WHO.

"We give a majority of the money that they get, and it's much more than the USD 58 million. USD 58 million is a small portion of what they've got over the years. Sometimes they get much more than that. Sometimes it's for programs that they're doing, and-it's much bigger numbers. If the programmes are good, that's great as far as we're concerned," he said.

"But we want to look into it, WHO, because they called it wrong. They (WHO) called it wrong. They missed the call. They could've called it months earlier. They would have known and they should have known and they probably did know. So, we'll be looking into that very carefully, and we're going to put a hold on money spent to the WHO," Trump said.

Meanwhile, Senator Jim Risch, chairman of Senate Foreign Relations Committee, called for an independent investigation into the WHO's handling of the COVID-19 response.

"The WHO has failed not only the American people, it has failed the world with its flagrant mishandling of the response to COVID-19," said Risch.

WHO Director general Tedros Adhanom Ghebreyesus' apparent unwillingness to hold the Chinese Communist Party to even the minimum standard of global health and transparency hindered the world's ability to blunt the spread of this pandemic, he said.

"It is completely unacceptable that the world's global health organization has become a political puppet of the Chinese government," he alleged, adding that "an independent investigation into the WHO's handling of the COVID-19 response is imperative."

The United States is the largest contributor to the WHO.

"Our valuable tax payer dollars should go towards investments to prevent the spread of disease, not to aid and abet cover-ups that cost lives and isolate portions of the world's population on political grounds, as has been the case with Taiwan," Senator Risch said.

A bipartisan group of nearly two dozen lawmakers announced Tuesday to introduce a resolution to defund the WHO until Ghebreyesus resigns and an international commission investigates the organisation's role in covering up the Chinese Communist Party's failed COVID-19 response.

"The WHO helped the Chinese Communist Party hide the threat of COVID-19 from the world and now more than 10,000 Americans are dead, a number that is expected to rise dramatically in the coming weeks," Congressman Guy Reschenthaler alleged.

"The United States is the largest contributor to WHO. It is not right that Americans' hard-earned tax dollars are being used to propagate China's lies and hide information that could have saved lives. This bill will hold the WHO accountable for their negligence and deceit," he asserted.

The United States' intelligence community has reported that the Chinese government hid the threat of COVID-19 and, as a result, made it difficult for the rest of the world to respond early, appropriately and aggressively, said Congressman Fred Keller.

"For reasons beyond understanding, the WHO acted as a silent partner in this effort instead of protecting the lives of millions across the world, including hundreds of thousands of American citizens. Our hard-earned tax dollars should not go to a global organization more concerned with not offending the Chinese government than providing accurate information and protecting innocent lives," Keller said.

Senator Marco Rubio accused the Chinese Communist Party of using WHO "to mislead the world."

"The organisation's leadership is either complicit or dangerously incompetent. I will work with the Trump Administration to ensure that WHO is independent and has not been compromised by the CCP before we continue our current funding, he added.

According to Johns Hopkins University, there are over 1.43 million confirmed coronavirus cases across the world and over 82,000 people have died due to the disease. The US has nearly 400,000 infections, the highest in the world.