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PLoS One. 2016 Jun 3;11(6):e0155949. doi: 10.1371/journal.pone.0155949. eCollection 2016.

Comparative Epidemiologic Characteristics of Pertussis in 10 Central and Eastern European Countries, 2000-2013.

Author information

1
University of Basel Children's Hospital (UKBB), Basel, Switzerland.
2
Service d'Hygiène, Epidémiologie et Prévention, Hôpital Edouard Herriot, Hospices Civils de Lyon, Lyon, France.
3
Department of Epidemiology, University of Defence, Hradec Kralove, Czech Republic.
4
Faculty of Public Health, Slovak Medical University, Bratislava, Slovakia.
5
Estonian Health Board, Tallinn, Estonia.
6
Hospital for Infectious Diseases, Sofia, Bulgaria.
7
National Institute of Health Promotion, Paediatric Directorate, Budapest, Hungary.
8
Department of Family Medicine, Medical University of Warsaw, Warsaw, Poland.
9
Institute for Public Health of Vojvodina, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia.
10
University Hospital, Hradec Kralove, Czech Republic.
11
Clinic of Children's Diseases, Faculty of Medicine, Vilnius University, Vilnius, Lithuania.
12
Department of Paediatrics, Riga Stradins University, Riga, Latvia.

Abstract

We undertook an epidemiological survey of the annual incidence of pertussis reported from 2000 to 2013 in ten Central and Eastern European countries to ascertain whether increased pertussis reports in some countries share common underlying drivers or whether there are specific features in each country. The annual incidence of pertussis in the participating countries was obtained from relevant government institutions and/or national surveillance systems. We reviewed the changes in the pertussis incidence rates in each country to explore differences and/or similarities between countries in relation to pertussis surveillance; case definitions for detection and confirmation of pertussis; incidence and number of cases of pertussis by year, overall and by age group; population by year, overall and by age group; pertussis immunization schedule and coverage, and switch from whole-cell pertussis vaccines (wP) to acellular pertussis vaccines (aP). There was heterogeneity in the reported annual incidence rates and trends observed across countries. Reported pertussis incidence rates varied considerably, ranging from 0.01 to 96 per 100,000 population, with the highest rates generally reported in Estonia and the lowest in Hungary and Serbia. The greatest burden appears for the most part in infants (<1 year) in Bulgaria, Hungary, Latvia, Romania, and Serbia, but not in the other participating countries where the burden may have shifted to older children, though surveillance of adults may be inappropriate. There was no consistent pattern associated with the switch from wP to aP vaccines on reported pertussis incidence rates. The heterogeneity in reported data may be related to a number of factors including surveillance system characteristics or capabilities, different case definitions, type of pertussis confirmation tests used, public awareness of the disease, as well as real differences in the magnitude of the disease, or a combination of these factors. Our study highlights the need to standardize pertussis detection and confirmation in surveillance programs across Europe, complemented with carefully-designed seroprevalence studies using the same protocols and methodologies.

PMID:
27257822
PMCID:
PMC4892528
DOI:
10.1371/journal.pone.0155949
[Indexed for MEDLINE]
Free PMC Article

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