The circumstances that enabled COVID-19 vaccines to receive rapid, 'emergency' authorizations aren't present with children, explains Michael Hefferon of Queen's University.

As millions of doses of mRNA COVID-19 vaccines are being given around the world, scientists believe this technology could usher in a new era in vaccinology.

We take a look at how the new mRNA technology works and what you should know about protection and herd immunity after COVID-19 vaccination.

A vaccine has the potential to protect many people from this devastating virus, but it will take time for it to work, says Julian Daniel Sunday Willett.