Details:

Alternative Title:
Vaccine
Personal Author:
Keckler, M. Shannon ; Reynolds, Mary G. ; Damon, Inger K. ; Karem, Kevin L.
Keckler, M. Shannon ; Reynolds, Mary G. ; Damon, Inger K. ; Karem, Kevin L. Less -
Description:
Decades after public health interventions - including pre- and post-exposure vaccination - were used to eradicate smallpox, zoonotic orthopoxvirus outbreaks and the potential threat of a release of variola virus remain public health concerns. Routine prophylactic smallpox vaccination of the public ceased worldwide in 1980, and the adverse event rate associated with the currently licensed live vaccinia virus vaccine makes reinstatement of policies recommending routine pre-exposure vaccination unlikely in the absence of an orthopoxvirus outbreak. Consequently, licensing of safer vaccines and therapeutics that can be used post-orthopoxvirus exposure is necessary to protect the global population from these threats. Variola virus is a solely human pathogen that does not naturally infect any other known animal species. Therefore, the use of surrogate viruses in animal models of orthopoxvirus infection is important for the development of novel vaccines and therapeutics. Major complications involved with the use of surrogate models include both the absence of a model that accurately mimics all aspects of human smallpox disease and a lack of reproducibility across model species. These complications limit our ability to model post-exposure vaccination with newer vaccines for application to human orthopoxvirus outbreaks. This review seeks to (1) summarize conclusions about the efficacy of post-exposure smallpox vaccination from historic epidemiological reports and modern animal studies; (2) identify data gaps in these studies; and (3) summarize the clinical features of orthopoxvirus-associated infections in various animal models to identify those models that are most useful for post-exposure vaccination studies. The ultimate purpose of this review is to provide observations and comments regarding available model systems and data gaps for use in improving post-exposure medical countermeasures against orthopoxviruses.
Subjects:
[+]
Animals Disease Models, Animal Humans Post-Exposure Prophylaxis Smallpox Vaccine Vaccination
Source:
Vaccine. 31(45):5192-5201
Pubmed ID:
23994378
Pubmed Central ID:
PMC4623313
Document Type:
Journal Article
Funding:
CC999999/Intramural CDC HHSUnited States/
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:8fea12b257f3ec74732bb1efcea2aca00dfb02b4ff9a62fa5e1c25c4eccaf6d9
Download URL:
https://stacks.cdc.gov/view/cdc/36292/cdc_36292_DS1.pdf
File Type:

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