| ORIGINAL ARTICLE |
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| Year : 2016 | Volume
: 3
| Issue : 2 | Page : 78-81 |
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Preventing pertussis in the early infant: Development and results of a prenatal vaccination program
Juan Acosta1, Carme Benages2, Miguel Angel Díaz3, Manel Xiberta1, Félix Muñiz1
1 Maternal and Childhood Department, Hospital General De Catalunya, Spain
2 Preventive Department, Hospital General De Catalunya, Spain
3 Research Department, Hospital General De Catalunya, Spain
Correspondence Address:
Juan Acosta
Department of Obstetrics and Gynecology, Hospital General de Catalunya, Pedro i Pons, 1- 08195 Sant Cugat del Vallès, Barcelona
Spain
 Source of Support: None, Conflict of Interest: None  | 2 |
DOI: 10.5530/ami.2016.2.17
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Introduction: Cases of Pertussis increase every year with special morbidity and mortality in early infants. The objective was to evaluate results of a program of vaccination of pregnant women launched in our center in 2013.
Methods: This is an observational retrospective study. We reviewed all cases of Pertussis disease in our center (2011-2015) and compared clinical data between two groups of age: Early infants (<3 months of age) and Other Groups (>3 months). We also compared perinatal events in vaccinated versus non vaccinated pregnant women.
Results: During the period 2011-2015, 63 cases (9 in Early Infants; 54 Other Groups) were treated. All cases in Early Infants required hospitalization (100% vs. 3,70%; p<0,05) with more days of hospitalization (10,2 days vs. 0,36 days; p<0,05) and need of oxygen (66,67% vs.3,70%; p<0,05). No differences were seen in response to Azithromycin (87,5% vs. 97,91%; p>0.05) nor in incidence in close relatives (44,44% vs. 27,45%; p>0,05). No differences were observed in Perinatal events in vaccinated vs. non vaccinated in terms of duration of pregnancy (279 days vs. 278 days; p>0,05), weight at birth (3290gr vs. 3220gr; p>0,05), admission at NICU (1,58% vs.1,87%; p>0,05) and Apgar test score <7 at 5 minutes (0,27% vs. 0%; p>0,05). Proportion in early infants affected lowered from 40% in 2011 to 3,85% in 2015.
Conclusions: Maternal immunization with Tdap vaccine seems to be a good strategy to reduce incidence of pertussis in the offspring. Additional measures such as vaccinating relatives should be considered.
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