BNT162b2 Booster Dose Elicits a Robust Antibody Response in Subjects with Abdominal Obesity and Previous SARS-CoV-2 Infection

Autor: Alexis Elias Malavazos, Carola Dubini, Valentina Milani, Sara Boveri, Chiara Meregalli, Caterina Bertolini, Carola Buscemi, Rosanna Cardani, Laura Valentina Renna, Manuel Bruno Trevisan, Valentina Scravaglieri, Maria Teresa Cuppone, Lorenzo Menicanti, Elena Costa, Federico Ambrogi, Chiara Ruocco, Michele Carruba, Gianluca Iacobellis, Enzo Nisoli, Massimiliano Marco Corsi Romanelli
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Vaccines, Vol 11, Iss 12, p 1796 (2023)
Druh dokumentu: article
ISSN: 2076-393X
DOI: 10.3390/vaccines11121796
Popis: Little is known about the long-term durability of the induced immune response in subjects with obesity, particularly in those with an abdominal distribution of adipose tissue. We evaluated SARS-CoV-2-specific antibody responses after BNT162b2 vaccine booster dose, comparing individuals with and without abdominal obesity (AO), discerning between individuals previously infected or not. IgG-TrimericS were measured in 511 subjects at baseline, on the 21st day after vaccine dose 1, and at 1, 3, 6, and 9 months from dose 2, and at 1 and 3 months following the booster dose. To detect SARS-CoV-2 infection, nucleocapsid antibodies were measured at baseline and at the end of the study. Multivariable linear regression evaluated the three-month difference in the absolute variation in IgG-TrimericS levels from booster dose, showing AO and SARS-CoV-2 infection status interactions (p = 0.016). Regardless of possible confounding factors and IgG-TrimericS levels at the booster dose, AO is associated with a higher absolute change in IgG-TrimericS in prior infected individuals (p = 0.0125). In the same regression model, no interaction is highlighted using BMI (p = 0.418). The robust response in the development of antibodies after booster dose, observed in people with AO and previous infection, may support the recommendations to administer a booster dose in this population group.
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