Human challenge trials are regarded by some as a faster way to develop vaccines – but they come with big risks.
Could they be used to speed up the development of a vaccine for Covid-19?
BBC Health Correspondent Laura Foster explains how they work.
Video by Terry Saunders, Megan Fisher and Laura Foster.
Read MoreFeedzy
Property managers, don’t let septic issues surprise you. Regular pumping saves money, prevents repairs, and…
Adding value to your home is great, and it’s even better when it fits your…
Discover the best water valve materials for your plumbing needs. Compare brass, PVC, CPVC, and…
Consular processing helps individuals achieve their US immigration goals efficiently. Learn about the advantages of…
Reliable equipment is essential for construction, mining, and more. Learn why lubrication matters for heavy…
Heavy equipment is essential on many construction sites, and enlisting the help of professional storage…