• Gac Med Mex · Jan 2023

    Prevalence of SARS-CoV-2 antibodies in cancer patients and healthcare workers vaccinated with two doses of BNT162b2 or AZD122. A propensity analysis.

    • Rodrigo Villaseñor-Echavarri, Daniel De-la-Rosa-Martinez, Emmanuel Frías-Jimenez, Alexandra Martin-Onraet, Alonso Cruz-Cruz, Luis Alonso Herrera-Montalvo, and Diana Vilar-Compte.
    • Department of Infectious Diseases, Instituto Nacional de Cancerología.
    • Gac Med Mex. 2023 Jan 1; 159 (4): 287295287-295.

    BackgroundVaccination is the most effective intervention for reducing the burden of SARS-CoV-2-related disease; however, gaps in knowledge regarding cancer patients (CPs) immune response persist.ObjectivesTo evaluate the humoral response (anti-S antibodies) in CPs and healthcare workers (HCWs) vaccinated with two doses of BNT162b2 or AZD122 vaccines.Material And MethodsPolyspecific anti-SARS-CoV-2 spike protein (anti-S) antibodies were quantified, and a 1:1 propensity score was used to balance baseline characteristics. Multiple logistic regressions were carried out to evaluate the effect of humoral response-related variables.ResultsOne-hundred and twenty-seven CPs (22%) and 439 HCWs (78%) were included. Both populations developed anti-S antibodies in response to vaccination. The mRNA-based vaccine (BNT162b2) was associated with higher odds of having anti-S antibody titers ≥ 1,000 U/mL, while active cancer was related to a lower probability of developing high antibody titers.ConclusionsThe BNT162b2 vaccine was associated with a higher humoral response. It is necessary for more information and vaccination strategies to be available for immunosuppressed patients in order to select the best biologics for this population based on individual characteristics.Copyright: © 2023 Permanyer.

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