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(Journal Article) |
American journal of diseases of children (1960) 147 (5): 575-7 (1993)
Unrecognized pertussis infection in adolescents.
B A Cromer
,
J Goydos
,
J Hackell
,
J Mezzatesta
,
C Dekker
,
E A Mortimer
ABSTRACT
Little information is available regarding the level of immunity to Bordetella pertussis among adolescents. We measured serum antibodies in 156 healthy adolescents to the following pertussis antigens: pertussis toxin, filamentous hemagglutinin, and 69-kd outer membrane protein. In an attempt to identify intercurrent pertussis infections, we also obtained a total of 43 repeated samples during the following 5 years. Using a 50% or greater rise in IgG enzyme-linked immunosorbent assay titers to define seroconversion, we found an annual incidence of 6.1%; by alternative definitions of seropositivity, the predicted annual incidence of infection ranged from 1.2% to 8.2%. These data suggest that infection with B pertussis is common in the adolescent population.