Academic Journal

Comparable Post-Vaccination Decay of Neutralizing Antibody Response to Wild-Type and Delta SARS-CoV-2 Variant in Healthcare Workers Recovered from Mild or Asymptomatic Infection

التفاصيل البيبلوغرافية
العنوان: Comparable Post-Vaccination Decay of Neutralizing Antibody Response to Wild-Type and Delta SARS-CoV-2 Variant in Healthcare Workers Recovered from Mild or Asymptomatic Infection
المؤلفون: Ilaria Vicenti, Monica Basso, Filippo Dragoni, Francesca Gatti, Renzo Scaggiante, Lia Fiaschi, Saverio G. Parisi, Maurizio Zazzi
المصدر: Vaccines, Vol 10, Iss 4, p 580 (2022)
بيانات النشر: MDPI AG, 2022.
سنة النشر: 2022
المجموعة: LCC:Medicine
مصطلحات موضوعية: COVID-19, vaccination, Delta, BNT162b2 vaccine, neutralizing antibody, Medicine
الوصف: We described the long-term decay of neutralizing antibody (NtAb) to the wild-type and Delta SARS-CoV-2 variant after three antigen stimulations (mild or asymptomatic natural infection followed by two doses of the BNT162b2 mRNA vaccine after a median of 296 days) in immunocompetent healthcare workers (HCWs). Live virus microneutralization against the B.1 and Delta SARS-CoV-2 variants was performed in VERO E6 cell cultures. The median NtAb titers for B.1 and Delta were comparable and highly correlated at both 20 and 200 days after the second vaccine dose in the 23 HCWs enrolled (median age, 46 years). A small group of naturally infected unvaccinated HCWs had comparable NtAb titers for the two strains after a median follow-up of 522 days from infection diagnosis. The NtAb response to the Delta VoC appears to follow the same long-term dynamics as the wild-type response regardless of the vaccinal boost; data collected after three antigen stimulations (natural infection followed by two doses of the BNT162b2 mRNA vaccine) may be helpful for tailoring the continuous monitoring of vaccine protection against SARS-CoV-2 variants over time.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2076-393X
Relation: https://www.mdpi.com/2076-393X/10/4/580; https://doaj.org/toc/2076-393X
DOI: 10.3390/vaccines10040580
URL الوصول: https://doaj.org/article/f323bbd4419b4d1ab3ded38115153936
رقم الانضمام: edsdoj.f323bbd4419b4d1ab3ded38115153936
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:2076393X
DOI:10.3390/vaccines10040580