 The abstract summarizes the findings of a study which looked at the correlation between antispike RBD antibody levels and protection from COVID-19 infections caused by the omega variant of the virus. The study found that higher levels of these antibodies were associated with lower risk of contracting the virus. However, the study also noted that the effect was only seen in people who had already been exposed to the virus before. This article was authored by Javier Perez-Ses, Marie Eugenia Zabala, Julian Lamor, and others.