Quantitative and qualitative analysis of seroconversion after one year of vaccination with inactivated SARS-CoV-2 vaccine (CoronaVac®) in healthcare workers: Cross-sectional analytical study

IF 2.2 4区医学 Q3 BIOCHEMICAL RESEARCH METHODS

Journal of virological methods Pub Date : 2024-11-15 DOI:10.1016/j.jviromet.2024.115067

Júlia Gomes da Silva , Viviana Galimberti Arruk , Glaucia Raquel Luciano da Veiga , Luiz Vinícius de Alcantara Sousa , Beatriz da Costa Aguiar Alves , Fernando Luiz Affonso Fonseca , Inneke Marie van der Heijden Natário

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引用次数: 0

Abstract

A descriptive study was carried out with health professionals in Sao Paulo city. Were included individuals vaccinated with 2 doses of the inactivated vaccine. Demographic, clinical and vaccination information was obtained from professionals with or without comorbidities. Two serological assays were used to identify the presence and quantity of anti-Spike IgG in serum samples. 433 healthy healthcare professionals were included and 58.9 % completed the 4 clinical stages of serological assessment. Among adults and elderly people, 25.2 % had chronic diseases (hypertension 50.5 %, diabetes 10 % and obesity 6.5 %). Most individuals have 95 % protection in the first 3 months after the second dose, and 67.68 % protection after 6 months. Total antibodies ranged from 3 to 10 on the reactivity index, and the anti-RBD IgG levels were high. CoronaVac has a 94 % seroconversion rate after 2 doses and can prevent serious cases and outbreaks of the disease, if used on a large scale.

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"医护人员接种 SARS-CoV-2 灭活疫苗 (CoronaVac®) 一年后血清转换的定量和定性分析：横断面分析研究"。

我们对圣保罗市的医疗专业人员进行了一项描述性研究。研究对象包括接种过两剂灭活疫苗的人员。研究人员从患有或不患有合并症的专业人员那里获得了人口统计学、临床和疫苗接种信息。采用了两种血清学检测方法来确定血清样本中是否存在抗斯派克 IgG 及其数量。共纳入了 433 名健康的医疗保健专业人员，其中 58.9% 完成了血清学评估的 4 个临床阶段。在成年人和老年人中，25.2%患有慢性疾病（高血压50.5%、糖尿病10%和肥胖6.5%）。大多数人在注射第二针后的头 3 个月内有 95% 的保护率，6 个月后有 67.68% 的保护率。总抗体的反应指数从3到10不等，抗RBD IgG水平较高。CoronaVac两剂后的血清转换率为94%，如果大规模使用，可以预防严重病例和疾病爆发。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of virological methods 医学-病毒学

CiteScore

5.80

自引率

0.00%

发文量

209

审稿时长

41 days

期刊介绍： The Journal of Virological Methods focuses on original, high quality research papers that describe novel and comprehensively tested methods which enhance human, animal, plant, bacterial or environmental virology and prions research and discovery. The methods may include, but not limited to, the study of: Viral components and morphology- Virus isolation, propagation and development of viral vectors- Viral pathogenesis, oncogenesis, vaccines and antivirals- Virus replication, host-pathogen interactions and responses- Virus transmission, prevention, control and treatment- Viral metagenomics and virome- Virus ecology, adaption and evolution- Applied virology such as nanotechnology- Viral diagnosis with novelty and comprehensive evaluation. We seek articles, systematic reviews, meta-analyses and laboratory protocols that include comprehensive technical details with statistical confirmations that provide validations against current best practice, international standards or quality assurance programs and which advance knowledge in virology leading to improved medical, veterinary or agricultural practices and management.