Two New Typhoid Vaccines Show Efficacy in Reducing Rates of Stool Shedding

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  • Shedding of Salmonella Typhi or Paratyphi in the stool or urine can lead to contamination of food or water supplies, but vaccination with Vi-polysaccharide or Vi-tetanus-toxoid conjugate vaccine successfully reduced stool shedding of S Typhi and is likely to reduce future transmission of disease.