Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Randomized Controlled Evaluation of the Vi Polysaccharide Vaccine Against Typhoid Fever in Eastern Kolkata, West Bengal, India
Brief Summary: This study is part of the International Vaccine Institute's (IVI's) typhoid Vi demonstration project that aims to accelerate the rational introduction of Vi vaccines in typhoid endemic countries. The purpose of this study is to determine the effectiveness of the Vi vaccine following a mass typhoid immunization campaign in an endemic area in Kolkata, India. The cost-effectiveness of the Vi vaccination and the logistic feasibility of a mass typhoid immunization campaign will also be evaluated.