NDLI: Analysis of biennial outbreak pattern of respiratory syncytial virus according to subtype (A and B) in the Zagreb region.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Mlinaric-Galinovic, Gordana Tabain, Irena Kukovec, Tamara Vojnovic, Gordana Bozikov, Jadranka Bogovic-Cepin, Jasna Ivkovic-Jurekovic, Irena Knezovic, Ivica Tesovic, Goran Welliver, Robert C.
Spatial Coverage	Croatia
Description	Country affiliation: Croatia Author Affiliation: Mlinaric-Galinovic G ( Department of Virology, Croatian National Institute of Public Health and University Medical School of Zagreb, Zagreb, Croatia. gordana.galinovic@hzjz.hr)
Abstract	BACKGROUND: The epidemic pattern of respiratory syncytial virus (RSV) in Croatia is biennial. In order to determine if the circulation of different RSV subtypes affects the outbreak cycle, the aim of the present study was to analyze the epidemic pattern of RSV in children in Croatia (Zagreb region) over a period of 3 consecutive years. METHODS: The study group consisted of 696 inpatients, aged 0-5 years, who were hospitalized with acute respiratory tract infections caused by RSV, in Zagreb, in the period 1 January 2006-31 December 2008. The virus was identified in nasopharyngeal secretions using direct immunofluorescence. The virus subtype was determined on real-time polymerase chain reaction. RESULTS: Of 696 RSV infections identified in children, subtype A virus caused 374 infections, and subtype B, 318. Four patients had a dual RSV infection (subtypes A and B). The period of study was characterized by four epidemic waves of RSV infections: the first, smaller, in the spring of 2006; the second, larger, in December 2006/January 2007; the third in spring 2008, followed by a fourth outbreak beginning in November of 2008. The biennial virus cycles were persistent although the predominant RSV subtype in the first two epidemic waves was subtype B, and in the second two it was subtype A. CONCLUSION: Over a 3 year period of observation, the biennial RSV cycle in Croatia cannot be explained by a difference in the predominant circulating subtype of RSV. Other unknown factors account for the biennial cycle of RSV epidemics in Croatia.
File Format	HTM / HTML
ISSN	13288067
Issue Number	3
Volume Number	54
e-ISSN	1442200X
Journal	Pediatrics International
Language	English
Publisher	Wiley
Publisher Date	2012-06-01
Publisher Place	Australia
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Pediatrics Disease Outbreaks Respiratory Syncytial Virus Infections Epidemiology Respiratory Syncytial Virus, Human Classification Child, Preschool Croatia Humans Infant Seasons Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Pediatrics, Perinatology and Child Health

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