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Volume 14, Number 7—July 2008

Letter

Pertussis Surveillance in Private Pediatric Practices, France, 2002–2006

Nicole Guiso*Comments to Author , France de La Rocque†, Elisabeth Njamkepo*, Aurelie Lécuyer†, Corinne Levy†, Olivier Romain†, Franck Thollot‡, Véronique Abitbol§, Benoit Soubeyrand¶, Robert Cohen#, and the French Pediatrics Groups Association Clinique et Thérapeutique Infantile du Val de MarneAssociation Française de Pédiatrie Ambulatoire
Author affiliations: *Institut Pasteur, Paris, France; †Association Clinique et Thérapeutique Infantile du Val de Marne, Saint Maur des Fossés, France; ‡Association Française de Pédiatrie Ambulatoire, Besançon, France; §GlaxoSmithKline, Marly le Roi, France; ¶Sanofi Pasteur MSD, Lyon, France; #Centre Hospitalier Intercommunal de Créteil, Créteil, France;

Main Article

Table

Characteristics of confirmed and nonconfirmed pertussis case-patients for whom vaccination status with pertussis whole-cell (Pw) vaccine was known

Characteristic Vaccinated 4× with Pw vaccine (N = 70)
Unvaccinated (N = 69)
Confirmed 
case-patients (n = 22) Nonconfirmed 
case-patients (n = 48) Confirmed 
case-patients (n = 25) Nonconfirmed 
case-patients (n = 44)
Diagnostic method
Culture 0† 3*
PCR 7† 17*
Serology 13 3
Epidemiology
2


2

Age, y
9.9 ± 2.1†
7.8 ± 3.4

2.3 ± 3.9†
0.8 ± 2.3
p value for age
0.008

0.0046
Source of contamination





Adults 5 7
Adolescents 4 5
Infants 1 (unvaccinated) 0

*p = 0.0009 for PCR and culture for case-patients receiving 4 doses of Pw vaccine versus unvaccinated confirmed case-patients.
†p<0.0001 by age for case-patients receiving 4 doses of Pw vaccine versus unvaccinated confirmed case-patients.

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