Heterologous protection elicited by a live, attenuated, Leptospira vaccine.

Vet Microbiol

Melioidosis Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand. Electronic address:

Published: September 2018

A previously-described live, attenuated vaccine (M1352, serovar Manilae, serogroup Pyrogenes) was tested in the hamster model of infection for cross-protective immunity. The vaccine elicited strong, significant cross-protection against lethal infection by strains representing four serologically distinct leptospiral serovars (Grippotyphosa, Australis, Canicola, and Autumnalis). Combined with our previously reported protection against serovars Pomona and Manilae, this work demonstrates unequivocal proof of concept for cross-protective immunity in leptospirosis.

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Source
http://dx.doi.org/10.1016/j.vetmic.2018.07.018DOI Listing

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