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Persistence of Serum and Salivary Antibody Responses After Oral Immunization with a Bacterial Protein Antigen Genetically Linked to the A2/B Subunits of Cholera Toxin

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Journal Infect Immun
Date 1996 Feb 1
PMID 8550224
Citations 16
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Abstract

Primary oral immunization of mice with a bacterial protein antigen genetically coupled to the A2 and B subunits of cholera toxin induced specific secretory immunoglobulin A and serum immunoglobulin G antibodies that persisted at substantial levels for at least 11 months. A subsequent single booster immunization did not further enhance the antibody responses. Long-term antibody persistence may be especially important in infections caused by common pathogens for which continuous immunity would be advantageous.

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