A protein-based smallpox vaccine protects non-human primates from a lethal monkeypox virus challenge

Autor: Nicola Richardson-Harman, Yuhong Xiao, Louis J. DeTolla, George W. Buchman, Stuart N. Isaacs, Peter Silvera, Gary H. Cohen, Roselyn J. Eisenberg, Matthew E. Cohen, Heather L. Davis
Rok vydání: 2010
Předmět:
Zdroj: Vaccine. 28:6627-6636
ISSN: 0264-410X
DOI: 10.1016/j.vaccine.2010.07.030
Popis: Concerns about infections caused by orthopoxviruses, such as variola and monkeypox viruses, drive ongoing efforts to develop novel smallpox vaccines that are both effective and safe to use in diverse populations. A subunit smallpox vaccine comprising vaccinia virus membrane proteins A33, B5, L1, A27 and aluminum hydroxide (alum) ± CpG were administered to non-human primates, which were subsequently challenged with a lethal intravenous dose of monkeypox virus. Alum-adjuvanted vaccines provided only partial protection but the addition of CpG provided full protection that was associated with a more homogeneous antibody response and stronger IgG1 responses. These results indicate that it is feasible to develop a highly effective subunit vaccine against orthopoxvirus infections as a safer alternative to live vaccinia virus vaccination.
Databáze: OpenAIRE