Ag-specific serum IgG levels at baseline (D0) and 28 days after challenge (D28), as evaluated by multiplex immunoassay.
PERTUSSIS
Data are arranged according to degree of colonization. IU, international units; AU, arbitrary units; PT, pertussis toxin; FHA, filamentous hemagglutinin; Prn, pertactin, Fim2/3, fimbriae 2 and 3. 