Arthritis, ReactiveArthritis, InfectiousArthritisYersinia InfectionsHLA-B27 AntigenArthritis, RheumatoidYersinia enterocoliticaSynovial FluidArthritis, ExperimentalChlamydia InfectionsSynovial MembraneArthritis, PsoriaticSalmonella InfectionsArthritis, JuvenileChlamydia trachomatisChlamydiaSpondylarthropathiesSpondylitis, AnkylosingYersiniaJointsCampylobacter InfectionsLymecyclineRheumatic DiseasesAntigens, BacterialSalmonella enteritidisHafniaAntibodies, BacterialEnteritisUrethritisImmunoglobulin AYersinia pseudotuberculosis InfectionsOsteoarthritisImmunoglobulin GKnee JointDysentery, BacillaryRats, Inbred LewImmunoglobulin MSalmonellaCampylobacter jejuniShigella