THECA consortium begins Vi-TT typhoid conjugate vaccine phase IV effectiveness study in Ghana

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  • 23,000 eligible children ages 9 months to 16 years will be vaccinated against typhoid as part of the phase IV study on TCV effectiveness in Asante Akim, Ghana
  • 11,500 subjects will receive the typhoid conjugate vaccine while the other 11,500 subjects will receive a control vaccine
  • Evidence supporting the effectiveness of the typhoid conjugate vaccine on both the individual and population levels is essential to implementation of TCV into Ghana’s immunization programming