Volume 14, Number 7—July 2008
Letter
Pertussis Surveillance in Private Pediatric Practices, France, 2002–2006
Nicole Guiso*
, 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
, 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 AmbulatoireTable
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.
