Turning a coronavirus protein into a nanoparticle could be key for COVID-19 vaccine: Changing makeup of a specific protein has the potential to neutralize the virus

One of the proteins on the virus -- located on the characteristic COVID spike -- has a component called the receptor-binding domain, or RBD, which is its 'Achilles heel.' That is, he said, antibodies against this part of the virus have the potential to the neutralize the virus.