Safety, dose, immunogenicity, and transmissibility of an oral live attenuated Shigella flexneri 2a vaccine candidate (SC602) among healthy adults and school children in Matlab, Bangladesh

Kazi Mizanur Rahman, Shams El Arifeen, K. Zaman, Mahbubur Rahman, Rubhana Raqib, Mohammad Yunus, Nazma Begum, Md Shaheenul Islam, Badrul Munir Sohel, Muntasirur Rahman, Malabi Venkatesan, Thomas L. Hale, Daniel W. Isenbarger, Philippe J. Sansonetti, Robert E. Black, Abdullah H. Baqui

Research output: Contribution to journalArticle

Abstract

In double-blind trials in Bangladesh, 88 adults, and 79 children (8-10 years) were randomized to receive either a single oral dose of 1×104, 1×105 or 1×106CFU of SC602 (a live, attenuated Shigella flexneri 2a strain vaccine) or placebo. In the adult outpatient 1×106 CFU group, severe joint pain and body aches were reported by one and two vaccinees respectively. In the adult inpatient trial, SC602 was isolated from 3 volunteers, pre-vaccination antibody titers were high, and fourfold increases in serum IgG anti-LPS responses were observed in 2 of 5 subjects of the 1×106CFU group. None of the volunteers developed diarrhea. Overall, SC602 was found to be associated with minimal vaccine shedding, minimal reactogenicity, no transmission risk, and low immune stimulation.

Original languageEnglish (US)
Pages (from-to)1347-1354
Number of pages8
JournalVaccine
Volume29
Issue number6
DOIs
StatePublished - Feb 1 2011

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Keywords

  • Bangladesh
  • Randomized controlled trial
  • SC602
  • Shigella vaccine

ASJC Scopus subject areas

  • Molecular Medicine
  • Immunology and Microbiology(all)
  • veterinary(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

Cite this

Rahman, K. M., Arifeen, S. E., Zaman, K., Rahman, M., Raqib, R., Yunus, M., Begum, N., Islam, M. S., Sohel, B. M., Rahman, M., Venkatesan, M., Hale, T. L., Isenbarger, D. W., Sansonetti, P. J., Black, R. E., & Baqui, A. H. (2011). Safety, dose, immunogenicity, and transmissibility of an oral live attenuated Shigella flexneri 2a vaccine candidate (SC602) among healthy adults and school children in Matlab, Bangladesh. Vaccine, 29(6), 1347-1354. https://doi.org/10.1016/j.vaccine.2010.10.035