[1] Natl Inst Publ Hlth & Environm, Ctr Infect Dis Epidemiol, NL-3720 BA Bilthoven, Netherlands
[2] Natl Inst Publ Hlth & Environm, Lab Vaccine Preventable Dis, NL-3720 BA Bilthoven, Netherlands
[3] Natl Inst Publ Hlth & Environm, Ctr Prevent & Hlth Care Res, NL-3720 BA Bilthoven, Netherlands
[4] Erasmus Univ, Med Ctr, Vaxinostics, Rotterdam, Netherlands