For killing Indian techie Srinivas Kuchibhotla, US man faces death or life in prison

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.

New Delhi, Mar 5: The primary classes of all schools in the national capital will remain closed till March 31 to prevent a possibility of spread of coronavirus, Deputy Chief Minister Manish Sisodia announced on Thursday.

According to Directorate of Education (DoE) officials, while elaborate guidelines have been issued about preventive measures for coronavirus, students of nursery and primary classes are too young to understand the risk, making them more prone to infectious diseases.

Sisodia, who also holds the education portfolio, tweeted, "As a precautionary measure to prevent the possibility of spread of COVID-19 amongst our children, Delhi Government has directed the immediate closure of all primary schools (Govt/ aided/ private/MCD/NDMC) till 31/3/20(sic)."

A senior DoE official said, "Elaborate guidelines have already been issued. However, students of nursery and primary classes are too young to understand the risks associated with COVID-19. Thus they are more prone to infectious diseases and mingle around with classmates more often."

"It will be good if they are trained in the do's and dont's under the care and supervision of their parents at home. However, students of classes other than primary will continue to come to schools or examination centres for writing their examination as per schedule. The teaching, as well as non-teaching staff, will also attend regular school," the official said.

As of now, the number of confirmed COVID-19 cases in the country stands at 30, including 16 Italian tourists. The figure includes the first three cases reported from Kerala last month who have already been discharged following recovery.

Alerted by the coronavirus case reported in Delhi-NCR, schools in the region have sent out advisories to parents suggesting that they do not send their wards to attend classes even in case of mild cough or cold, and saying that they may declare holidays if the need arises. A few schools have announced already holidays and others have advanced their spring break.

Geneva, Mar 30: The number of confirmed COVID-19 cases worldwide has reached 634,835, among them 29,957 fatalities, the World Health Organization (WHO) said on Sunday.

Over the past 24 hours, 63,159 people were confirmed to be infected with the novel coronavirus and 3,464 people died, the WHO said.

According to the latest situation report, the majority of the confirmed cases - more than 361,000 - are presently concentrated in Europe, with Italy leading the tally with over 92,000 cases, followed by Spain with over 72,000 cases, and Germany with over 52,000 cases.

Italy and Spain are also the countries that top the worldwide death toll from COVID-19, with 10,023 and 5,690 fatalities, respectively.

The second most affected region is currently the Americas with over 120,000 verified COVID-19 cases, of which the majority - over 103,000 - have been found in the United States. The US is also the country with the highest single tally of COVID-19 cases at the moment.
The WHO declared COVID-19 a pandemic on March 11.