Randomized Controlled Trial

Revaccination with locally-produced vi typhoid polysaccharide vaccine among chinese school-aged children: safety and immunogenicity findings.

Pediatr. Infect. Dis. J. 2007 Nov 1; 26 (11): 1001-5.
Randomized Controlled Trial

Effectiveness of Vi capsular polysaccharide typhoid vaccine among children: a cluster randomized trial in Karachi, Pakistan.

Vaccine. 2012 Aug 3; 30 (36): 5389-95.
Review

Population impact of Vi capsular polysaccharide vaccine.

Expert Rev Vaccines. 2010 May 1; 9 (5): 485-96.