There is speculation about whether a population can achieve some sort of immunity to the virus with as little as 20% infected.

Antibodies that recognize and block SARS-CoV-2 infection have the potential to be powerful weapons. An infectious disease expert explains what antibodies are and how they could be used as a therapy.

An antigen test was given emergency use authorization by the FDA in early May. A biochemist explains how COVID-19 antigen tests work.

'Nanobodies' produced by the llama immune system can neutralise the virus that causes COVID-19.

Expanding coronavirus testing is one of the most important tasks public health officials are tackling right now. But questions over accuracy of the two main types of tests have rightly caused concern.

Your body can be infected and fight off SARS-CoV-2 without your ever noticing.

After your body fights off an infection, antibodies remain in your blood. Two researchers explain how tests identify these antibodies and what the data can be used for.