Cholera in pregnancy: Clinical and immunological aspects

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Abstract

Background: The objective of this study was to examine the clinical and immunological features of cholera in pregnancy. Methods: Women of reproductive age presenting to the icddr,b Dhaka hospital with cholera, and enrolled as part of a larger cohort study, were tested for pregnancy on admission. We compared initial clinical features and immune responses of pregnant patients with non-pregnant female patients at days 2, 7 and 21 after infection. Results: Among reproductive age women enrolled between January 2001 and May 2006, 9.7% (14/144) were pregnant. The duration of diarrhoea prior to admission tended to be higher in pregnant compared to non-pregnant patients (p=0.08), but other clinical characteristics did not differ. Antibody responses to cholera toxin B subunit (CtxB), toxin-coregulated pilus A (TcpA), Vibrio cholerae lipopolysaccharide (LPS), and serum vibriocidal antibody responses, were comparable between pregnant and non-pregnant patients. There were no deaths among the pregnant cases or non-pregnant controls, and no adverse foetal outcomes, including stillbirths, during 21 days of follow up of pregnant cases. Conclusions: To our knowledge, this is the first report of immune responses in pregnant women with cholera. We found that pregnant woman early in pregnancy has comparable clinical illness and subsequent immune responses compared to non-pregnant women. These findings suggest that the evaluation of safety and immunogenicity of oral cholera vaccines in pregnancy should be an area of future investigations.

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APA

Khan, A. I., Chowdhury, F., Leung, D. T., Larocque, R. C., Harris, J. B., Ryan, E. T., … Qadri, F. (2015). Cholera in pregnancy: Clinical and immunological aspects. International Journal of Infectious Diseases, 39, 20–24. https://doi.org/10.1016/j.ijid.2015.08.006

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