艾滋病毒感染者或艾滋病毒感染风险的患者对MVA- BN和先前天花疫苗的免疫反应
Yijia Li1, Michael B Townsend2, Shanshan Li2
1School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
Open forum infectious diseases
|August 28, 2025
概括
修改后的安卡拉-巴伐利亚北欧 (MVA-BN) 疫苗,也称为JYNNEOS,在老年人中产生持久的mopox抗体,不管他们的HIV状况如何. 在本研究中,疫苗接种史和出生年份影响了抗体水平.
科学领域:
- 免疫学
- 病毒学
- 公共卫生
背景情况:
- 关于老年人对MVA- BN疫苗 (JYNNEOS) 的血清反应的数据有限,特别是关于艾滋病毒的情况.
- 麻疹病毒对各种人群构成风险,了解疫苗在脆弱群体中的有效性至关重要.
研究的目的:
- 评估艾滋病毒感染或未感染的老年人对MVA- BN疫苗的抗体反应.
- 评估疫苗接种后长达一年的血清反应的持久性.
- 确定影响抗体水平的因素,如艾滋病毒状况和出生年份.
主要方法:
- 一项涉及多中心艾滋病队列研究/妇女机构间艾滋病毒联合队列研究的114名参与者的队列研究,年龄中位数为64岁.
- 测量患有或有艾滋病毒感染风险的个体的抗脊髓炎病毒抗体水平,自报MVA- BN疫苗接种史.
- 根据HIV阳性和MVA- BN疫苗接种情况对参与者进行分层.
主要成果:
- 无论艾滋病毒状况如何,MVA- BN疫苗接种导致持续的IgG抗体水平长达一年.
- 在1973年之前接种疫苗的个体显示IgG水平较高.
- 与没有艾滋病毒的患者相比,未接种MVA- BN的艾滋病毒患者的IgG水平较低.
结论:
- 在老年人,包括艾滋病毒感染者中,MVA- BN疫苗引发了持久的幽默免疫反应.
- 诸如出生年份等因素可能会影响MVA- BN的免疫反应.
- 需要使用更大的样本进行进一步的研究,以证实这些在脆弱的老年人群中的发现.
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