The effect of age on the clinical presentation of pertussis was assessed in 664 adolescent
and adult cases. Complications were more frequent in adults than in adolescents (28% vs …

To estimate the incidence of pertussis, a prospective study was done among members of a
managed care organization in Minneapolis/St. Paul, Minnesota. Of 212 patients 10–49 years …

From 1989 to 1998, the incidence of pertussis increased in Massachusetts adolescents and
adults, reaching 71 and 5 per 100,000, respectively, by 1998, whereas the incidence in …

Abstract From 1980 through 1989, 27,826 cases of pertussis were reported to the Centers
for Disease Control, for an average annual crude incidence of 1.2 cases/100,000 …

Since 1990, the reported incidence of pertussis has increased in the United States with
peaks occurring every 3-4 years. On the basis of analysis of pertussis cases reported to the …

• A survey was conducted of 89 households in each of which at least one patient with culture-
confirmed pertussis had been detected. The source of infection was found to be an adult in …

There is increasing evidence that pertussis occurs frequently in adults, but there is limited
information on the clinical course of this disease beyond childhood. A household contact …

Objectives.—To determine the prevalence ofBordetella pertussisinfection among adults who
have prolonged cough for 2 weeks or longer and to estimate the incidence ofB …

Although pertussis in adults is well documented, opinions differ about incidence of adult
disease and about the role of adults as reservoirs of infection. We made use of a prospective …

Several years ago we predicted a resurgence of per-tussis in the United States." This
prediction was based on the changing epidemiology of pertussis related to the use of …