Published in Vaccine Weekly, May 14th, 2008
"Study sites where typhoid was considered a problem by local authorities were established in China, India, Indonesia, Pakistan and Viet Nam. Standardized clinical, laboratory, and surveillance methods were used to investigate cases of fever of >or=3 days' duration for a one-year period. A total of 441,435...
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Source: Vaccine Weekly (2008-05-14)
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