Provided are methods for rapidly inactivating a pathogen, or for producing a vaccine composition containing an inactivated noninfectious pathogen having retained antigenicity and/or immunogenicity, comprising exposing the pathogen to a chemical inactivating agent (e.g., one or more chemical oxidizing, alkylating or crosslinking agents) in the presence of inorganic polyatomic oxyanions in an amount and for a time sufficient to render the pathogen noninfectious while enhancing retention of pathogen antigenicity and/or immunogenicity relative to that retained by contacting the pathogen with the chemical inactivating agent alone. The methods are broadly applicable to pathogens having RNA or DNA genomes (e.g., including viruses, bacteria, fungi, and parasites). Also provided are vaccine compositions (medicaments) containing a pathogen inactivated by exposure to a an inactivating agent in the presence of elevated concentrations of inorganic polyatomic oxyanions, and methods for eliciting an immune response in a subject by administering the vaccine compositions.
本发明提供了快速灭活病原体或生产含有灭活的非传染性病原体且具有保留抗原性和/或免疫原性的疫苗组合物的方法,包括在无机多原子氧离子存在下,将病原体暴露于
化学灭活剂(如一种或多种
化学氧化剂、烷基化剂或
交联剂)中,其用量和时间足以使病原体失去传染性,同时增强其保留抗原性和/或免疫原性、无机多原子
氧阴离子存在下的一种或多种
化学氧化剂、烷基化剂或
交联剂),其用量和时间足以使病原体失去传染性,同时相对于病原体单独与
化学灭活剂接触所保留的抗原性和/或免疫原性而言,可提高病原体抗原性和/或免疫原性的保留率。这些方法广泛适用于具有 RNA 或 DNA
基因组的病原体(例如,包括病毒、细菌、真菌和寄生虫)。此外,还提供了疫苗组合物(药物),其中含有在无机多原子
氧阴离子浓度升高的情况下通过接触灭活剂灭活的病原体,以及通过施用疫苗组合物激发受试者免疫反应的方法。