• Vaccine Name: SL3261-P. aeruginosa serogroup O11 O antigen
• Target Pathogen: Pseudomonas aeruginosa
• Target Disease: Pseudomonas aeruginosa infection
• Vaccine Ontology ID: VO_0004674
• Type: Recombinant vector vaccine
• Status: Research
• Host Species for Licensed Use: Baboon
• Vector:
  • Vector name:
  • VO vector ID: VO_0001031
• Preparation: Attenuated Salmonella enterica serovar Typhimurium SL3261 expressing P. aeruginosa serogroup O11 O antigen (DiGiandomenico et al., 2004).
• Immunization Route: Intramuscular injection (i.m.)

Mouse Response

• Vaccination Protocol: For oral vaccination, mice were fed 100 μl of either PBS or the Salmonella vector and vaccine strains (1 × 10^9 to 5 × 10^9 CFU) by intragastric gavage. Oral inoculation was repeated once per week for a total of 4 weeks. For i.p. vaccination, mice were inoculated with a single dose of either PBS or each Salmonella strain (10^6 CFU) (DiGiandomenico et al., 2004).
• Vaccine Immune Response Type: VO_0003057
• Challenge Protocol: Mice were challenged with P. aeruginosa strains 9882-80 (serogroup O11) and 6294 (serogroup O6) (DiGiandomenico et al., 2004).
• Efficacy: Orally vaccinated mice with an O11 strain (9882-80) at 6 and 12 times the 50% lethal dose showed increased survival in mice that received the vaccine compared to phosphate-buffered saline (PBS)- and vector-treated controls; no difference in survival was seen with a heterologous strain, 6294 (serogroup O6). In addition, significant protection against 9882-80 was not observed in i.p. vaccinated animals (DiGiandomenico et al., 2004).