title: Seroprevalence of pertussis among Danish patients with cough of unknown etiology.
authors.affiliation: Department of Microbiologic Surveillance and Research, Statens Serum Institut, Artillerivej 5, 45-305, DK-2300 Copenhagen S, Denmark. tid@ssi.dk
authors.forename: Tine
authors.initials: T
authors.lastname: Dalby
authors.forename: Zitta B
authors.initials: ZB
authors.lastname: Harboe
authors.forename: Karen Angeliki
authors.initials: KA
authors.lastname: Krogfelt