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Volume 19, Number 3—March 2013

Dispatch

Virulence of Pertactin-Negative Bordetella pertussis Isolates from Infants, France

Hélène Bodilis1 and Nicole GuisoComments to Author 
Author affiliations: Institut Pasteur, Paris, France; Centre National de la Recherche Scientifique (CNRS)

Main Article

Table 2

Clinical signs and symptoms of vaccinated and unvaccinated pertussis patients, France, 2004–2007

Characteristics
No. patients/no. with characteristic (%)
p value*
Not vaccinated, n = 46
Received 1–2 doses, n = 12
Intensive care admission 18/34 (53) 0/11 (0) 0.001
Apnea 15/25 (60) 1/7 (14) 0.08
Cyanosis/desaturation 24/28 (86) 5/8 (62) 0.167
Syncopal episodes 12/26 (46) 0/8 (0) 0.03
Bradycardia 15/21 (71) 3/6 (50) 0.367
Deterioration of general condition 12/29 (41) 2/8 (25) 0.68
Malignant pertussis 1/29 (3) 0/8 (0) 1.0

*By Fisher exact test.

Main Article

1Current affiliation: Cochin Hospital, Paris, France

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