Ingestible Immunity: Oral Typhoid Vaccine Innovations An Effective Alternative to InjectionsThe typhoid fever, a bacterial infection caused by Salmonella Typhi, remains a major public health problem in many developing countries where sanitation and clean water supplies are limited. Every year over 11 million cases of typhoid fever occur globally resulting in over 128,000 deaths. Children and young adults are at highest risk. The disease is...