The study investigates COVID-19 serologic responses in cancer patients in Andorra, noting that their responses may be lower compared to the general population and can depend on tumor type and cancer treatments.
A total of 373 oncologic patients were analyzed, revealing an increase in seroprevalence from 13% to 19%, with notably lower rates in those with hematologic malignancies and those on biological therapies.
Women and tumor-free patients exhibited higher seroprevalence, with vaccination showing varying effectiveness: those vaccinated with ChAdOx1-S had a higher seroprevalence than those vaccinated with BNT162b2.