太平洋地区新喀里多尼亚首次出现 SARS-CoV-2 流行后的 SARS-CoV-2 和季节性冠状病毒血清流行研究

IF 1.5 Q4 INFECTIOUS DISEASES
Karl Huet , Michael White , Anne-Fleur Griffon , Emma Bloch , Elodie Magnat , Gaelle Baudemont , Catherine Inizan , Pascale Domingue Mena , Myrielle Dupont-Rouzeyrol
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引用次数: 0

摘要

目的:本研究旨在确定太平洋地区新喀里多尼亚首次流行 SARS-CoV-2 之后针对 SARS-CoV-2 和其他人类冠状病毒的免疫球蛋白 G 抗体的血清流行率。采样时间为 2021 年 7 月至 2022 年 7 月,但在 SARS-CoV-2 首次在新喀里多尼亚流行(2021 年 9 月至 2022 年 3 月)后中断。我们收集并分析了有关种族、年龄、性别、主要居住地、COVID-19 和疫苗接种的先期性的数据。我们发现,截至 2022 年 7 月底,81% 的人对 SARS-CoV-2 有抗体反应。疫苗接种率为 75%,而感染者占总人口的 40%。45 岁人群的疫苗接种率明显高于 18-44 岁人群(80%,95% 置信区间为 74-84%)。结论在新喀里多尼亚,我们发现在第一波 SARS-CoV-2 流行和疫苗接种运动之后,免疫率很高(81%)。分析表明,整个地区的感染率存在空间异质性,大洋洲人的感染率最高。我们的研究还突出表明,新喀里多尼亚居民感染其他人类冠状病毒的几率很高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A seroprevalence study of SARS-CoV-2 and seasonal coronaviruses after the first SARS-CoV-2 circulation in New Caledonia, Pacific region

A seroprevalence study of SARS-CoV-2 and seasonal coronaviruses after the first SARS-CoV-2 circulation in New Caledonia, Pacific region

Objectives

This study aimed to determine the seroprevalence of immunoglobulin G antibodies targeting SARS-CoV-2 and other human coronaviruses after the first circulation of SARS-CoV-2 in New Caledonia, Pacific region.

Methods

Blood samples were collected to detect the presence of SARS-CoV-2 immunoglobulin G antibodies. The sampling took place between July 2021 and July 2022 but was interrupted after the first circulation of SARS-CoV-2 (September 2021-March 2022) in New Caledonia. Data on ethnicity, age, gender, main residence, and anteriority of COVID-19 and vaccination were collected and analyzed.

Results

A total of 747 participants, representative of New Caledonia's adult population, were included in the study. We found that 81% of the population had antibody responses to SARS-CoV-2 at the end of July 2022. The vaccination rate was 75%, whereas infections had affected 40% of the population. Individuals aged >45 years were significantly more vaccinated than those aged 18-44 years (80%, 95% confidence interval 74-84%). Oceanians were the most infected (50%, 95% confidence interval 42-57%).

Conclusion

In New Caledonia, we show a high immunity rate (81%) after the first waves of SARS-CoV-2 circulation and the vaccination campaign. The analyses showed spatial heterogeneities in the infection rate across the territory and revealed that Oceanians were the most infected. Our study also highlighted high exposure of New Caledonia's population to other human coronaviruses.

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IJID regions
IJID regions Infectious Diseases
CiteScore
1.60
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