Efficacy trial of Vi polysaccharide vaccine against typhoid fever in south-western China

OBJECTIVE: To test the efficacy of locally produced Vi vaccine over a time period of longer than one year. METHODS: A double-blinded, randomized field trial was performed in Guangxi Zhuang Autonomous Region in south-western China, using 30 mg doses of locally produced Vi. Enrolled subjects were 3-50...

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Bibliographic Details
Main Authors: Yang H.H., Wu C.G., Xie G.Z., Gu Q.W., Wang B.R., Wang L.Y., Wang H.F., Ding Z.S., Yang Y., Tan W.S., Wang W.Y., Wang X.C., Qin M., Wang J.H., Tang H.A., Jiang X.M., Li Y.H., Wang M.L., Zhang S.L., Li G.L.
Format: Article
Language:English
Published: The World Health Organization 2001-01-01
Series:Bulletin of the World Health Organization
Subjects:
Online Access:http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0042-96862001000700007