Ebede Samuel Onuzulike, Orabueze Ibuchukwu Nkeonyenasoya, Maduakor Uzoamaka Charity, Nwafia Ifeyinwa Nkeiruka, Ohanu Martin Ekechukwu
Department of Medical Microbiology, Faculty of Basic Clinical Sciences, College of Medicine, University of Nigeria, Ituku-Ozalla Campus, Enugu, Enugu State, Nigeria.
Department of Microbiology, University of Nigeria Teaching Hospital, Ituku-Ozalla, Enugu, Enugu State, Nigeria.
BMC Infect Dis. 2025 Apr 15;25(1):536. doi: 10.1186/s12879-025-10896-5.
In August 2024, the Africa CDC and WHO declared Mpox a Public Health Emergency of Continental Security and a Public Health Emergency of International Concern, respectively, following a devastating global outbreak driven by newly emerged virulent clades I (Ia, IIb) and II (IIa, IIb) of the Mpox virus. These new clades are genetically and phylogenetically distinct from previously known strains, with the re-emerging variants originating from the Democratic Republic of the Congo (DRC) and rapidly spreading to neighbouring regions and across the globe. The ongoing epidemic is characterized by alarming morbidity and mortality, and the newly identified clades are linked to significant changes in the epidemiology of the disease, resulting in worse clinical outcomes. Sexual transmission has emerged as a key factor in sustaining the spread of the virus, particularly among sexually active young adults, facilitating the virus's spread beyond Africa. To combat the growing threat, there is an urgent need for the development of a polyvalent vaccine that incorporates the diverse circulating clades as part of other mitigation measures.. Widespread vaccination with such a vaccine could help achieve herd immunity and complement other infection prevention and control strategies to effectively mitigate the impact of this global health crisis.
2024年8月,在猴痘病毒新出现的高毒株I(Ia、IIb)和II(IIa、IIb)引发全球毁灭性疫情之后,非洲疾病预防控制中心和世界卫生组织分别宣布猴痘为非洲大陆安全公共卫生紧急事件和国际关注的突发公共卫生事件。这些新毒株在基因和系统发育上与先前已知的毒株不同,重新出现的变种起源于刚果民主共和国,并迅速传播到邻近地区及全球各地。当前的疫情具有惊人的发病率和死亡率,新发现的毒株与该疾病流行病学的重大变化有关,导致临床结果更糟。性传播已成为病毒持续传播的关键因素,尤其是在性活跃的年轻人中,这促使病毒传播到非洲以外地区。为应对日益增长 的威胁,迫切需要研发一种多价疫苗,将多种流行毒株纳入其中,作为其他缓解措施的一部分。广泛接种这种疫苗有助于实现群体免疫,并补充其他感染预防和控制策略,以有效减轻这场全球卫生危机的影响。