Conditions: Arthritis, Rheumatoid; Spondylarthritis; Vasculitis
Intervention: Biological: Hepatitis A vaccine and tetanus vaccine
Sponsors : University of Zurich; University of Zurich; University of Basel; Swiss Tropical & Public Health Institute; University of Bern; University Hospital, Geneva; Cantonal Hospital of St. Gallen; Cantonal Hospital of Aarau
Not yet recruiting - verified September 2013
