Tetanus Clinical Trial
Official title:
A Randomized, Blinded, Controlled Phase I Clinical Trial for Preliminary Evaluation of the Safety and Immunogenicity of Adsorbed Cell-free DPT Vaccine (for People Aged 6 Years and Above)
Pertussis is an acute respiratory infectious disease caused by Bordetella pertussis, diphtheria is an acute upper respiratory infectious disease caused by Gram-positive Corynebacterium diphtheriae, and tetanus is a highly fatal disease caused by Clostridium tetani infection. Currently, there is no clinical trial registration of Diphtheria, tetanus, and pertussis (DPT) vaccine applicable to ≥6 years of age in China, therefore, the five-component acellular DPT combination vaccine developed by our research has a promising future.
The vaccines used in China's immunization program for the prevention of pertussis, tetanus and diphtheria include the adsorbed cell-free diphtheria-tetanus-acellular pertussis vaccine (DTaP) and the diphtheria-tetanus-acellular tetanus vaccine (DT) and tetanus vaccine. Among them, DTaP vaccination is for children from 3 months of age to 6 years of age, with one dose each at 3, 4, 5, and 18 months of age; DT vaccination is for children under 12 years of age, with one dose at 6 weeks of age after completing four doses of DTaP vaccination. However, infant and young child vaccination is no longer sufficient to prevent the threat of this disease, mainly due to the rapid decay of immune protection in adolescents and adults, and infections in this population, which are the main source of infection leading to infection in infants and young children, have been a number of new preventive strategies are being evaluated. ;
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