By Dan
Whitcomb , Steve Gorman
LOS ANGELES (Reuters) - Los Angeles
health officials have told first responders to stop bringing adult patients who
cannot be resuscitated to hospitals, citing a shortage of beds and staff as the
latest COVID-19 surge threatened to overwhelm healthcare systems in America’s
second-largest city.
The order, issued late on Monday and
effective immediately, marked an escalation of measures being taken by state and
local officials nationwide in the face of alarming increases in COVID-19
infections, hospitalizations and deaths.
Ambulances have been forced to wait
several hours to unload patients at some Los Angeles hospitals, causing delays
throughout the county’s emergency response system.
“Patients in traumatic full arrest
who meet current Ref 814 criteria for determination of death shall not be
resuscitated and shall be determined dead on scene and not transported,”
Marianne Gausche-Hill, medical director of the Los Angeles County Emergency
Medical Services Agency, said in the directive.
Ref 814 refers to the county’s
policy on determining and pronouncing death in a patient who has not been
transported to a hospital.
California, the most populous U.S.
state, has been hit particularly hard by the latest coronavirus surge, which
some public health officials attribute to Thanksgiving holiday gatherings in
November. Los Angeles is one of two California counties reporting a shortage of
intensive care unit beds.
More
https://uk.reuters.com/article/uk-health-coronavirus-usa/ambulances-put-on-alert-as-los-angeles-hospitals-swamped-by-covid-19-patients-idUKKBN29A2QM?il=0
China doubles down on COVID
narrative as WHO investigation looms
January
5, 2021 6:55 AM By David Stanway
SHANGHAI (Reuters) - As a team from
the World Health Organization (WHO) prepares to visit China to investigate the
origins of COVID-19, Beijing has stepped up efforts not only to prevent new
outbreaks, but also shape the narrative about when and where the pandemic
began.
China has dismissed criticism of its
early handling of the coronavirus, first identified in the city of Wuhan at the
end of 2019, and foreign ministry spokeswoman Hua Chunying said on Monday that
the country would welcome the WHO team.
But amid simmering geopolitical
tensions, experts said the investigators were unlikely to be allowed to
scrutinise some of the more sensitive aspects of the outbreak, with Beijing
desperate to avoid blame for a virus that has killed more than 1.8 million
people worldwide.
----On Saturday, senior diplomat
Wang Yi praised the anti-pandemic efforts, saying China not only curbed
domestic infections, but also “took the lead in building a global anti-epidemic
defence” by providing aid to more than 150 countries.
But mindful of the criticism China has faced
worldwide, Wang also became the highest-ranking official to question the
consensus about COVID-19’s origins, saying “more and more studies” show that it
emerged in multiple regions.
China is also the only country to claim
COVID-19 can be transmitted via cold chain imports, with the country blaming
new outbreaks in Beijing and Dalian on contaminated shipments - even though the
WHO has downplayed those risks.
China has been accused of a cover-up that
delayed its initial response, allowing the virus to spread further.
The topic remains sensitive, with only a
handful of studies into the origins of COVID-19 made available to the public.
But there have also been signs China is
willing to share information that contradicts the official picture.
Last week, a study by China’s Center
for Disease Control showed that blood samples from 4.43% of Wuhan’s population
contained COVID-19 antibodies, indicating that the city’s infection rates were
far higher than originally acknowledged.
But scientists said China must also
share any findings suggesting COVID-19 was circulating domestically long before
it was officially identified in December 2019.
An Italian study showed that
COVID-19 might have been in Europe several months before China’s first official
case. Chinese state media used the paper to support theories that COVID-19
originated overseas and entered China via contaminated frozen food or foreign
athletes competing at the World Military Games in Wuhan in October 2019.
Raina MacIntyre, head of the Kirby
Institute’s Biosecurity Research Program in Australia, said the investigation
needed to draw “a comprehensive global picture of the epidemiological clues”,
including any evidence COVID-19 was present outside of China before December
2019.
However, political issues mean they
are unlikely to be given much leeway to investigate one hypothesis, that the
outbreak was caused by a leak at the Wuhan Institute of Virology, said
MacIntyre.
“I think it is unlikely all viruses
in the lab at the time will be made available to the team,” she said. “So I do
not think we will ever know the truth.”
https://uk.reuters.com/article/uk-health-coronavirus-china-who/china-doubles-down-on-covid-narrative-as-who-investigation-looms-idUKKBN29A0LV?il=0
Next, some vaccine links
kindly sent along from a LIR reader in Canada. The links come from a most
informative update from Stanford Hospital in California.
World
Health Organization - Landscape of COVID-19 candidate vaccines . https://www.who.int/publications/m/item/draft-landscape-of-covid-19-candidate-vaccines
NY
Times Coronavirus Vaccine Tracker . https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html
Stanford
Website . https://racetoacure.stanford.edu/clinical-trials/132
Regulatory
Focus COVID-19 vaccine tracker . https://www.raps.org/news-and-articles/news-articles/2020/3/covid-19-vaccine-tracker
Some other useful Covid links.
Johns Hopkins Coronavirus
resource centre
https://coronavirus.jhu.edu/map.html
Rt Covid-19
https://rt.live/
Covid19info.live
https://wuflu.live/
Centers for Disease Control
Coronavirus
https://www.cdc.gov/coronavirus/2019-ncov/index.html
The Spectator
Covid-19 data tracker (UK)
https://data.spectator.co.uk/city/national
"The art of medicine consists of amusing the patient while
nature cures the disease."
Voltaire.
Technology Update.
With events happening
fast in the development of solar power and graphene, I’ve added this section.
Updates as they get reported.
Chemistry tweaks make for
rechargeable zinc-air batteries
By Michael Irving January 04, 2021
Zinc-air
batteries are great little energy storage devices, but they have plenty of room
for improvement – for one, they’re not usually rechargeable. Now a team led by
the University of Münster has developed a new zinc-air chemistry that makes
this type of battery more efficient and rechargeable.
Unlike
most batteries, which pack all their vital components inside the cell, zinc-air
batteries rely on oxygen coming in from the surrounding air. In a way, they
“breathe” oxygen that interacts with the cathode, producing molecules that
cross the pastey alkaline electrolyte and react with the zinc anode to generate
an electric current.
The problem is, the zinc anode is “used up” after it
oxidizes, making the battery non-rechargeable. Some designs get around this by
making the zinc components replaceable, or using rare-earth mineral catalysts
to make them rechargeable, but these introduce extra costs or complications.
For the new study, engineers created a new electrolyte that
can make zinc-air batteries rechargeable. Rather than the more paste-like
consistency of most electrolytes in this type of battery, in the new design it
is more of a liquid. It’s based on zinc trifluoromethanesulfonate salt, making
it non-alkaline, which the team says makes it more chemically stable – and most
importantly, reversible (ie, rechargeable).
"Our innovative, non-alkaline electrolyte brings a
previously unknown reversible zinc peroxide (ZnO2 )/O2
chemistry into the zinc-air battery,” says Wei Sun, lead researcher on the
study. “The zinc-air battery provides a potential alternative battery
technology [to lithium-ion] with advantages such as environmental friendliness,
high safety and low costs.”
The team says that the new batteries continued to operate
stably over 320 cycles and 1,600 hours of use. Part of that is because
water-repelling anions in the electrolyte keep water away from the cathode
surface, which makes it more stable.
It’s an interesting development, but the team acknowledges
that the design is still a fair way off practical applications. And this is
just one way zinc-air batteries could be made rechargeable – other
studies have swapped out the expensive rare-earth mineral catalysts for
more common elements like iron, cobalt and nickel.
https://newatlas.com/energy/rechargeable-zinc-air-batteries/
Paper money eventually returns to its intrinsic value:
zero.
Voltaire.
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