Abstract:
:The current study determined the ability of Francisella novicida to act as a live vaccine against the much more virulent, but closely related pathogen, Francisella tularensis. Live attenuated strains of the latter are effective vaccines against human tularemia. However, the molecular cause of their attenuation remains unknown, and this is a regulatory barrier for licensing such vaccines. Moreover, F. tularensis is exceptionally difficult to manipulate genetically. This is hampering the development of rationally attenuated vaccine strains. F. novicida shares a lot of genetic homology with F. tularensis and is more amenable to genetic manipulation. If the former naturally expresses the protective antigens of the latter, it could be used to develop a defined tularemia vaccine. However, the results presented herein show that wild-type F. novicida elicits almost no protection in mice against challenge with virulent F. tularensis.
journal_name
Microb Pathogjournal_title
Microbial pathogenesisauthors
Shen H,Chen W,Conlan JWdoi
10.1016/j.micpath.2004.04.005subject
Has Abstractpub_date
2004-08-01 00:00:00pages
107-10issue
2eissn
0882-4010issn
1096-1208pii
S0882401004000567journal_volume
37pub_type
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