Acquired resistance of guinea pigs to Dermacentor andersoni mediated by humoral factors.


Humoral and cell-mediated immune resistance to tick infestation has been documented in many host-parasite relationships. This study examines passive transfer of resistance to Dermacentor andersoni expressed by recipients of serum pools derived from guinea pigs that had acquired resistance through experimental infestation. Recipients of sera from high titer… (More)


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