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Coronavirus vaccine: What are human challenge trials?

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Volunteers are set to be deliberately infected with Covid-19 after the

UK Government said it will set up human challenge trials to speed up the development of a vaccine.

Human challenge trials are regarded by some as a faster way to develop vaccines – but they come with big risks.

They’ve been used for hundreds of years but a lot of people question how ethical is to deliberately expose people to an infectious disease.

More than 140 different organisations around the world are currently trying to discover a vaccine for Covid-19.

But could challenge trials be used to speed up the process? What is a human challenge trial?

BBC Health Correspondent Laura Foster explains how they work.

Video by Terry Saunders, Megan Fisher and Laura Foster.


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Basic protective measures against the new corona virus

What you can do regarding this period or what you should do regularly
* Use tissue while sneezing

* Avoid Traveling

* Stay At Home

* Use mask if you go out

* Wash your hands frequently with soap

* Avoid Crowd

* Be Safe.

COVID-19 Stats