Concerns over a possible second wave of coronavirus infections are growing. If we want to live less-restricted lives and keep the economy going, detailed antibody testing may be the key. It tells us how many people have actually been infected, including those who were asymptomatic. A project designed to analyze the results of antibody testing is being carried out by researchers from various fields, including genomic science and big data. We take a look at what's happening on the frontline.