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Inicio Vacunas (English Edition) Whooping cough surveillance in Catalonia, 2011–2018
Journal Information
Vol. 25. Issue 1.
Pages 64-70 (January - March 2024)
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Vol. 25. Issue 1.
Pages 64-70 (January - March 2024)
Original article
Whooping cough surveillance in Catalonia, 2011–2018
Glòria Carmona-Parcerisaa, Laura Ruiz-Mitjavilaa, Carme Fernández-Gutiérreza, Mireia Jané-Checaa,b, Ana Martínez Mateoa,b, Pilar Ciruela Navasa,b,
Corresponding author
pilar.ciruela@gencat.cat

Corresponding author.
a Subdirección General de Vigilancia y Respuesta a Emergencias de Salud, Agència de Salut Pública de Catalunya, Barcelona, Spain
b Centro Investigación Biológica en Red, Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
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Statistics
Figures (5)
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Tables (8)
Table 1. Whooping cough incidence rate by age group. Catalonia 2011–2018.
Table 2. Pertussis and Catalonia: cases in infants under 2 months of age and in those under the age of 1 year before (2013) and after (2014–2018) whooping cough vaccination of women in their third trimester of pregnancy.
Table 3. Distribution of cases of pertussis in individuals 18 years old or younger. Catalonia 2014–2015 versus 2017–2018.
Table 4. Vaccine history of cases of whooping cough (all ages). Catalonia 2011–2018.
Table 5. Vaccine history of cases of whooping cough aged between 5 and 18 years. Catalonia 2011–2018.
Table 6. Vaccine history of whooping cough cases by age group. Catalonia 2011–2018.
Table 7. Standardized incidence rates by territory. Catalonia 2011–2018.
Table 8. Distribution of cases of pertussis by case classification (suspected and/or confirmed). Catalonia 2011–2018.
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ABSTRACT
Introduction

The objective of the article is to describe the main results of pertussis surveillance in Catalonia and to evaluate its evolution in recent years.

Material and methods

According to the case definition in Catalonia, suspicious and confirmed cases notified to the Obligatory Disease Declaration System (MDO) for the period 2011–2018 have been included, after the validation of the notification made by health professionals to this system has been completed.

Results

In 2011, a re-emergence of whooping cough was observed in Catalonia which remained during the study period (2011–2018), although since 2016 a decrease in incidence has been observed. The highest rate for the period was that of 2015, which reached the value of 49.2 per 100 000 inhabitants. Children under 1 year showed the highest incidence rates, but decreased over the period.

The recommendation to vaccinate against pertussis pregnant women in the third trimester of pregnancy, that started in 2014, has impacted on the incidence in children under the age of 1 and especially in children under 2 months, which has decreased significantly. The high percentage of cases in children between 5 and 18 years with 4–5 doses of vaccine shows the lower effectiveness of the acellular vaccine versus the whole cell vaccine.

Conclusions

Control of whooping cough is currently a challenge that public health surveillance services have to face.

Keywords:
Whooping cough
Surveillance and control
Re-emergence
Resumen
Introducción

el objectivo de este articulo consiste en describir los principales resultados de la vigilancia de la tos ferina en Cataluña y valorar su evolución en los últimos años.

Material y métodos

en este estudio se han incluído los casos sospechosos y los casos confirmados al sistema de Enfermedades de Declaració Obligatoria (EDO) en el periodo 2011–2018, de acuerdo a la definición de caso vigente en Cataluña, una vez validada la notificación realizada por los profesionales sanitarios a este sistema.

Resultados

el año 2011 en Cataluña se observó una reemergencia de la tos ferina que se ha mantenido a lo largo del periodo de estudio (2011–2018), aunque desde 2016 se ha observado una disminución de la incidencia. La tasa más alta del periodo fue la del año 2015, que registró una tasa de 49,2 por 100.000 habitantes.

Los menores de 1 año presentaron las tasas de incidencia más elevadas, pero disminuyeron en los últimos años del periodo. La recomendación de vacunar de tos ferina a las mujeres embarazadas en el tercer trimestre de la gestación a partir del año 2014 ha impactado en la incidencia en los menores de 1 año y sobretodo en los menores de 2 meses, que ha disminuído de manera significativa. El alto porcentaje de casos en ninos entre 5–18 años con 4–5 dosis de vacuna pone de manifiesto la menor efectividad de la vacuna acelular versus la vacuna de células enteras.

Conclusiones

en la actualidad el control de la tos ferina constituye un reto para los servicios de vigilancia de salut pública.

Palabras clave:
Tosferina
Vigilancia y control
Reemergencia

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