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    • Foot-and-Mouth disease vaccines. II. Studies on the duration of immunity in cattle and pigs 

      The Plum Island Animal Disease Center; Pan American Health Organization; Pan American Foot and Mouth Disease Center (PANAFTOSA) (Rio de Janeiro, PAHO, 1975)
      [Introduction] In the present study, only oil-adjuvanted vaccines were tested. The objective was to compare the response of pigs to vaccines prepared by each of the Centers from an identical source of antigen. A vaccine ...