INVESTIGADORES
ZURITA Maria Eugenia
congresos y reuniones científicas
Título:
EPIDEMIOLOGY OF PERTUSSIS IN ARGENTINA DURING THE 2006-2010 PERIOD: TRENDS BY AGE GROUP AND STATUS OF VACCINATION. POSSIBLE SOURCE OF INFECTION
Autor/es:
FLORES, DARIO; LARA, CLAUDIA; ZURITA, MARIA EUGENIA; SORHOUET, C; FIORITI, ARIEL; FIORI, SILVANA; BOTTERO, DANIELA; GATTI, B.; PIANCIOLA, LUIS; MAZZEO, M.; ZAMBONI, M.I.; ANCHART, E.; GRAIEB, AUGUSTO; GONZALEZ AYALA, S.; GALAS, MARCELO; HOZBOR, DANIELA
Reunión:
Simposio; Ninth International Bordetella Symposium; 2010
Resumen:
In Argentina, as in other countries, the incidence of pertussis has increased
steadily. Particularly in our country such an increase is registered since 2002
and pertussis outbreaks have been detected ever since in different provinces and
areas clearly indicatingthe presence of this disease. The aim of our work is
to describe the epidemiology of the disease in Argentina during the period
2006-2010 and discuss the possible causes that could explain the re-emergence of
the disease. CDC and the Argentinian Ministry ofHealth criteria were used
for pertussis diagnosis. We analyzed the proportion of pertussis cases by age
and immunization status of patients. In some cases the contacts were
analyzed.Out of 13,234 patients with symptoms compatible with pertussis,
3,211 were confirmed: 614 in 2006, 751 in 2007, 823 in 2008, 523 in 2009 and 500
in the first two trimesters of 2010. Approximately 55% of cases were registered
in Buenos Aires and Cordoba, themost populated regions of our country. While
the largest proportion of cases occurred in children under 6 months of age and
in patients with incomplete immunization schemes to provide protection, there
were cases in adolescent and adult contacts.These data for Argentina´s
population are new and we hope that this information could contribute to
describe the epidemiology of the disease and to improve preventive
strategies.Here we reported the proportion of pertussis cases by age and
immunization status of patients detected in the Argentinean Pertussis National
ReferenceCenter. The data presented clearly show that pertussis remains a
public health problem in our country. While the largest proportion of cases
occurs in childrenunder 6 months of age and in patients with incomplete
immunization schemes to provide protection, there were cases in adolescent and
adult contacts.From the reported contact data , we observed that the main
source of infection of susceptible children is represented by parents, as in
other countries, followed by other cohabiting adults and brothers.