Ibrahim M S Shnawa, and Mahdi H M AL-Amar. “Lapin Challenge Model for Laboratory Development of an Oral Carbohydrate Based Vi Vaccine for Typhoid”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 70, no. 1, Oct. 2023, pp. 337-44, https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/16210.