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

  • 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.