Coronavirus: US volunteers test first vaccine

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The first human trial of a vaccine to guard against pandemic coronavirus has started within the US.Four patients received the jab at the Kaiser Permanents research center in Seattle, Washington, reports the Associated Press press agency .

The vaccine cannot cause Covid-19 but contains a harmless ordering copied from the virus that causes the disease.Experts say it’ll still take many months to understand if this vaccine, or others also in research, will work.

The first person to urge the jab on Monday was a 43-year-old mother-of-two from Seattle.”This is a tremendous opportunity on behalf of me to try to to something,” Jennifer Haller told AP.

Scientists round the world are fast-tracking research.

And this first human trial, funded by the National Institutes of Health, sidesteps a make sure would normally be conducted – ensuring the vaccine can trigger an immune reaction in animals.

But the biotechnology company behind the work, Moderna Therapeutics, says the vaccine has been made employing a tried and tested process.Dr John Tregoning, an expert in infectious diseases at Imperial College London, UK, said: “This vaccine uses pre-existing technology.

“It’s been made to a really high standard, using things that we all know are safe to use in people and people participating within the trial are going to be very closely monitored.

“Yes, this is often in no time – but it’s a race against the virus, not against one another as scientists, and it’s being finished the advantage of humanity.”

Why US testing failed – and may it catch up now?
Typical vaccines for viruses, like measles, are made up of a weakened or killed virus.But the mRNA-1273 vaccine isn’t made up of the virus that causes Covid-19.

Instead, it includes a brief segment of ordering copied from the virus that scientists are ready to make during a laboratory.

This will hopefully prime the body’s own system to repel the important infection.The volunteers were being given different doses of the experimental vaccine.

They will each tend two jabs in total, 28 days apart, into the upper arm muscle.But albeit these initial safety tests go well, it could still take up to 18 months for any potential vaccine to become available for the general public .

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