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Immune responses induced in cattle by vaccination with a recombinant adenovirus expressing Mycobacterial antigen 85A and Mycobacterium bovis BCG.

TB Research Group, VLA-Weybridge, New Haw, Addlestone, Surrey KT15 3NB, United Kingdom.
Infection and Immunity (Impact Factor: 4.16). 03/2006; 74(2):1416-8. DOI: 10.1128/IAI.74.2.1416-1418.2006
Source: PubMed

ABSTRACT Cattle were vaccinated with an adenovirus expressing the mycobacterial antigen 85A (rAd85A), with Mycobacterium bovis BCG followed by rAd85A heterologous boosting, or with rAd85A followed by BCG boosting. BCG/rAd85A resulted in the highest direct gamma interferon responses. Cultured enzyme-linked immunospot assay analysis demonstrated that memory responses were induced by all three protocols but were strongest after BCG/rAd85A and rAd85A/BCG vaccination.

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