House, Deborah, Vo A. Ho, To S. Diep, Nguyen T. Chinh, Phan V. Bay, Ha Vinh, Minh Duc, et al. 2008. “Antibodies to the Vi Capsule of Salmonella Typhi in the Serum of Typhoid Patients and Healthy Control Subjects from a Typhoid Endemic Region”. The Journal of Infection in Developing Countries 2 (04):308-12. https://doi.org/10.3855/jidc.227.