Background: A resurgence of pertussis has been observed in Canada, the United States
and Australia since the 1980s, but inconsistent data are currently available for Europe. The …

Abstract The World Health Organization recommended that a pertussis incidence of< 1 case
per 100,000 population be achieved in Europe by 2000. Available data indicate that this …

During the postvaccine era in Canada, most cases of pertussis have been reported in
children< 5 years of age, with the highest incidence, morbidity, and mortality in infants< 1 …

Background. Despite widespread vaccination during 30 years, the hypothesis of a
resurgence of pertussis in France has been raised by outbreaks and sporadic case reports …

Background. Beginning in 1990 Canada experienced a resurgence of pertussis. Changes in
incidence and hospitalization according to age in the province of Quebec between 1983 and …

To assess the morbidity associated with the continued high levels of pertussis, we studied all
children. 2 years of age who were admitted to the 11 Immunization Monitoring Program …

Pertussis has reemerged as a problem across the world. To better understand the nature of
the resurgence, we reviewed recent epidemiologic data and we report disease trends from …

Background: Increased incidence of pertussis has been noted among infants too young to
be immunized. We studied the disease burden of pertussis in pediatric intensive care units …

ContextReported cases of pertussis among adolescents and adults have increased since
the 1980s, despite increasingly high rates of vaccination among infants and children …

Despite best efforts by immunization teams and immunologists worldwide, the World Health
Organization (WHO) goal that the incidence of pertussis should be reduced to 1 case per …