Journal
JOURNAL OF LEUKOCYTE BIOLOGY
Volume 67, Issue 4, Pages 457-463Publisher
FEDERATION AMER SOC EXP BIOL
DOI: 10.1002/jlb.67.4.457
Keywords
T lymphocytes; B lymphocytes; antibodies; protection; vaccination; typhoid fever
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Infection of mice with Salmonella typhimurium results in systemic infection and a disease similar to that seen in humans after infection with S. typhi. Time innate immune system can restrict replication of S. typhimurium to a certain degree, but for effective control and eradication of bacteria, acquired immunity is essential. Salmonella infection induces the generation of specific CD4(+) and CD8(+) T cells, and both T cell populations are important for protection during primary and secondary responses, although the mechanisms underlying T cell-mediated protection are not yet completely understood, infection with S, typhimurium also results in a strong antibody response to Salmonella antigens and, in contrast to most other intracellular bacteria, this antibody response participates in protection, In summary, the response to S, typhimurium involves both T and B cell-mediated immunity, and mechanisms mediated by both lymphocyte populations are important for control of primary infection and protection against secondary infection.
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