A new study of 96,000 COVID-19 patients that looks at the effects of hydroxychloroquine on the body, suggests its use against the coronavirus leads to an increased risk of death.
Elsewhere, a review of global studies into the virus reveals a trend that suggests children are half as likely as adults to catch and pass on COVID-19.
This story will be regularly updated throughout Saturday.
Saturday's key moments:
Hydroxychloroquine increases likelihood of death: study
Malaria drug hydroxychloroquine, which US President Donald Trump says he has been taking, was tied to increased risk of death in a study in 96,000 COVID-19 patients, according to a paper published in the widely respected medical journal The Lancet.
The study found that people treated with hydroxychloroquine, or the closely related drug chloroquine, had higher risk of in-hospital death when compared to those who had not been given the drug.
Mr Trump has said he is taking hydroxychloroquine to protect against the coronavirus, even though his administration has warned it can have deadly side effects.
The head of Italy's pharmacological agency has also weighed in on the lack of data to suggest it is effective against COVID-19 as Italy conducts its own limited trials of the drug.
Putin says Russia has stabilised the outbreak
Russian President Vladimir Putin said the outbreak in Russia has begun to abate, creating a positive environment for easing restrictions.
Russia currently ranks second after the United States in the number of infections with 326,448 cases, including 3,249 deaths.
The Russian leader said a steady drop in new cases, from almost 7,000 new cases per day at the peak of the outbreak, to roughly 3,000 now, sets the stage for further lifting of restrictions.
Mr Putin noted that the country's hospitals are capable of accommodating over 165,000 coronavirus patients, and they are currently two-thirds occupied. He acknowledged the need need to preserve hospital capacity in case of a new wave of contagion as restrictions lit.
The COVID-19 mortality rate in Russia has remained remarkably low at about 1 per cent, drawing suspicions in the West that the country was under-reporting its death toll.
Russian officials have rejected the claim, saying that the low toll reflected efficient preventative measures and broad testing.
Children half as likely to catch and pass coronavirus, research suggests
A review of studies around the world by British researchers has found that people under 20 have a 56 per cent lower risk of catching COVID-19.
The review is not without its doubters, however, as some researchers such as those at University College London have said evidence remains "weak" on how likely children were to transmit the virus to others.
"Our findings show children and young people appear 56 her cent less likely to contract COVID-19 from infected others," the review team said.
"Susceptibility is a key part of the chain of infection, and this supports the view that children are likely to play a smaller role in transmitting the virus and proliferating the pandemic, although considerable uncertainty remains.
"This new data provides essential evidence to governments around the world to inform their decision-making on whether to reopen schools and reduce or end lockdown measures."
#ukschools
Britain may leave school reopening decision to teachers
A spokesperson for British Prime Minister Boris Johnson says Government ministers trust principal to take their own decisions in allowing students back to school.
The comment comes as the UK Government prepares to release its "roadmap" plan to reopen the UK.
Mr Johnson's Government has faced criticism from some teachers and unions over their plan to reopen schools to some pupils from June 1.
They say the move is too early and others that they have little time to prepare buildings for a return under social distancing measures.
"We continue to work closely with teachers, schools and the unions to address their concerns," the spokesman said.
"The roadmap sets out plans to get more children into schools in the safest possible way from June 1 at the earliest and we will set out more details on our plans as soon as we can.
"We trust head teachers to know the best course of action for their own schools."
ABC/wires
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2020-05-22 17:57:35Z
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