• Vaccine Name: T. brucei DNA Vaccine encoding TSA protein
• Target Pathogen: Trypanosoma brucei
• Target Disease: African trypanosomiasis (African Sleeping Sickness)
• Vaccine Ontology ID: VO_0011491
• Type: DNA vaccine
• Status: Research
• Host Species as Laboratory Animal Model: mouse
• TSA gene engineering:
  • Type: DNA vaccine construction
  • Description:
  • Detailed Gene Information: Click Here.
• DNA vaccine plasmid:
  • DNA vaccine plasmid name:
  • DNA vaccine plasmid VO ID: VO_0000024
• Immunization Route: Intramuscular injection (i.m.)

Mouse Response

• Host Strain: BALB-c
• Vaccination Protocol: Mice were immunized by injecting 100 μg (200 μl) of plasmid DNA encoding nTSA gene by intramuscular route. As a control groups, five mice were injected with 100 μg of plasmid pVAX1LacZ (Invitrogen—USA) and with 200 μl of PBS by the same route (Silva et al., 2009).
• Challenge Protocol: After 175 days of immunization, mice in vaccinated and control groups were submitted to the challenge assay, performed by intraperitoneal injection of 500 parasites (T. b. brucei GVR 35 1.5) per animal. The period of survival, defined as the number of days after infection that the infected animals remain alive, was evaluated (Silva et al., 2009).
• Efficacy: The DNA vaccination process was able to protect 60% of mice submitted to a challenge assay with the infective form of T. brucei brucei parasites (Silva et al., 2009).