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 Warning of airborne spread
Supercomputer-driven models simulated in Japan suggested that
operating commuter trains with windows open and limiting the number
of passengers may help reduce the risk of coronavirus infections, as
scientists warn of airborne spread of the virus.
In an open letter published on Monday, 239 scientists in 32
countries outlined evidence that they say shows floating virus
particles can infect people who breathe them in.
The World Health Organization acknowledged "evidence emerging" of
airborne transmission, but said it was not definitive.
The recent study by Japanese research giant Riken using the world’s
fastest supercomputer, the Fugaku, to simulate how the virus travels
in the air in various environments advised several ways to lower
infection risks in public settings.
Grim milestone
The U.S. coronavirus outbreak crossed a grim milestone of over 3
million confirmed cases on Tuesday as more states reported record
numbers of new infections, and Florida faced an impending shortage
of intensive care unit hospital beds.
Authorities have reported alarming upswings of daily caseloads in
roughly two dozen states over the past two weeks, a sign that
efforts to control transmission of the novel coronavirus have failed
in large swathes of the country.
In Texas alone, the number of hospitalized patients more than
doubled in just two weeks. In Houston, a line of more than 200 cars
snaked around the United Memorial Medical Center as people waited
hours in sweltering heat to get tested.
Neurological complications
Scientists warned on Wednesday of a potential wave of coronavirus-related
brain damage as new evidence suggested COVID-19 can lead to severe
neurological complications, including inflammation, psychosis and
delirium.
A study by researchers at University College London (UCL) described
43 cases of patients with COVID-19 who suffered either temporary
brain dysfunction, strokes, nerve damage or other serious brain
effects.
Adrian Owen, a neuroscientist at Western University in Canada, said
the emerging evidence underlined the need for large, detailed
studies and global data collection to assess how common such
neurological and psychiatric complications were.
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He is running an international research project at covidbrainstudy.com where
patients can sign up to complete a series of cognitive tests to see whether
their brain functions have altered since getting COVID-19.
Melbourne's "sacrifice"
Australia should slow down the return of its citizens from abroad, Prime
Minister Scott Morrison said on Wednesday, as the country grapples with a fresh
coronavirus outbreak that has forced it to isolate its second most populous
state.
The border between Victoria and New South Wales, the busiest in the country, was
closed overnight and around 4.9 million residents in the Victorian capital of
Melbourne will return to partial lockdown at midnight following a spike in
COVID-19 cases in the city.
“The rest of the country knows that the sacrifice that you’re going through
right now is not just for you and your own family, but it’s for the broader
Australian community,” Morrison said during a televised media conference.
Red flags have been raised by potential quarantine breaches that the Victorian
state government believes led to returnees spreading the virus.
Rioting in Serbia
Dozens of demonstrators and police were injured in overnight rioting in
Belgrade, triggered when a crowd stormed Serbia's parliament in protest at plans
to reimpose a lockdown following a surge in coronavirus cases.
Footage showed police kicking and beating people with truncheons while
protesters pelted officers with stones and bottles, after thousands chanting for
the resignation of President Aleksandar Vucic gathered outside the building.
Vucic announced the new lockdown on Tuesday, saying it was needed because of the
rising number of coronavirus cases.
The government's critics say its decisions to allow soccer matches, religious
festivities, parties, and private gatherings to resume, and parliamentary
elections to go ahead on June 21, are to blame for the spike in infections.
(Compiled by Linda Noakes and Karishma Singh; editing by Emelia Sithole-Matarise)
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