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Recognition of purified rLatA by pig sera. Western blots were probed with sera from infected animals (numbers 1 to 9) or uninfected animals (numbers 10 to 16). Sera from infected animals reacted specifically with rLatA, whereas reactivity of sera from uninfected animals was negligible. Induction of specific antibodies indicates that LatA is expressed during in vivo infection with L. intracellularis.
