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Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Clin+Immunol 2022 ; 42 (3): 448-458 Nephropedia Template TP
Dispinseri S; Marzinotto I; Brigatti C; Pirillo MF; Tolazzi M; Bazzigaluppi E; Canitano A; Borghi M; Gallinaro A; Caccia R; Vercesi R; McKay PF; Ciceri F; Piemonti L; Negri D; Cinque P; Cara A; Scarlatti G; Lampasona V
J Clin Immunol 2022[Apr]; 42 (3): 448-458 PMID35000058show ga
SARS-CoV-2 vaccination is known to induce antibodies that recognize also variants of concerns (VoCs) of the virus. However, epidemiological and laboratory evidences indicate that these antibodies have a reduced neutralization ability against VoCs. We studied binding and neutralizing antibodies against the Spike protein domains and subunits of the Wuhan-Hu-1 virus and its alpha, beta, delta VoCs and of seasonal betacoronaviruses (HKU1 and OC43) in a cohort of 31 health care workers prospectively followed post-vaccination with BNT162b2-Comirnaty. The study of sequential samples collected up to 64 days post-vaccination showed that serological assays measuring IgG against Wuhan-Hu-1 antigens were a poor proxy for VoC neutralization. In addition, in subjects who had asymptomatic or mild COVID-19 prior to vaccination, the loss of nAbs following disease could be rapid and accompanied by post-vaccination antibody levels similar to those of naive vaccinees. Interestingly, in health care workers naive for SARS-CoV-2 infection, vaccination induced a rapid and transient reactivation of pre-existing seasonal coronaviruses IgG responses that was associated with a subsequent reduced ability to neutralize alpha and beta VoCs.