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CLINICAL MICROBIOLOGY

Towards a chlamydia vaccine

Nature Reviews Microbiology volume 19, page 3 (2021)Cite this article

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Chlamydia is the most common sexually transmitted bacterial infection in humans but is often asymptomatic. Left untreated, chlamydia infection can lead to serious complications, such as infertility, and thus vaccine development is a priority. Morrison et al. studied Chlamydia muridarum infection in mice, isolating a mutant C. muridarum strain (termed GIAM-1) that shows substantially reduced infection of the genital tract compared with that of the wild type. However, GIAM-1 efficiently infected the gastrointestinal tract, which induced robust humoral immunity against C. muridarum. Importantly, gastrointestinal tract infection with GIAM-1 protected mice against subsequent genital tract infection with wild-type C. muridarum. These results suggest that by manipulating tissue-tropism to obtain immunogenic bacterial strains that do not infect the genital tract, a live-attenuated vaccine for the human pathogen Chlamydia trachomatis might be obtainable.

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References

Original article

  • Morrison, S. G. et al. A genital infection-attenuated Chlamydia muridarum mutant infects the gastrointestinal tract and protects against genital tract challenge. mBio 11, e02770-20 (2020)

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  1. Nature Reviews Microbiology http://www.nature.com/nrmicro/

    Grant Otto

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  1. Grant Otto
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Correspondence to Grant Otto.

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Otto, G. Towards a chlamydia vaccine. Nat Rev Microbiol 19, 3 (2021). https://doi.org/10.1038/s41579-020-00489-1

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