Good Immunogenicity of Delayed Second Dose of BNT162b2 Vaccine in Individuals with Acute Allergic-like Reactions after the First Dose

We assessed SARS-CoV-2 anti-spike immunoglobulin G (anti-S-IgG) levels among healthcare workers (HCWs) after BNT162b2 vaccination. The anti-S-IgG titers of study participants were measured every three months, a week before, and weeks each This compared the short-term immune response to second vaccination in four HCWs who received first two doses six months apart (due acute allergic-like adverse events dose), with that apart, according standard schedule. experienced took antihistamines before None them an reaction vaccination, was similar both groups.