Immune responses in chickens against Salmonella typhimurium monitored with egg antibodies.

Abstract excerpt

Three mature hens were immunized with an Aro- mutant of Salmonella typhimurium beginning with a subcutaneous dose in adjuvant followed by two oral boosters. Isotype-specific antibodies were measured in the white and yolk eggs collected weekly over a period of 230 days. Two hens showed a memory response to the first oral booster, with large increases in egg yolk IgG and smaller increases in IgA and IgM antibodies...

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