Abstract
Adult volunteers received a booster dose (4 x 10(8) CFU) of attenuated Vibrio cholerae CVD 103-HgR oral vaccine 15 or 24 months after primary immunization. The immune response was modest, presumably due to rapid clearance of the vaccine strain by a primed immune system.
MeSH terms
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Administration, Oral
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Adult
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Antibodies, Bacterial / analysis
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Cholera Vaccines / immunology*
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Cholera Vaccines / toxicity
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Humans
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Immunization, Secondary
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Middle Aged
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Vaccines, Attenuated / immunology
Substances
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Antibodies, Bacterial
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Cholera Vaccines
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Vaccines, Attenuated