Local transmission of chikungunya in Rome and the Lazio region, Italy

On September 7, 2017, three potentially autochthonous cases of chikungunya were notified in the Lazio region. An Outbreak investigation based on established surveillance system data and molecular analysis of viral variant(s) were conducted. Epidemiological analysis suggested the occurrence of 3 main...

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Bibliographic Details
Published in:PloS one Vol. 13; no. 12; p. e0208896
Main Authors: Vairo, Francesco, Mammone, Alessia, Lanini, Simone, Nicastri, Emanuele, Castilletti, Concetta, Carletti, Fabrizio, Puro, Vincenzo, Di Lallo, Domenico, Panella, Vincenzo, Varrenti, Donatella, Scaramozzino, Paola, di Caro, Antonino, Scognamiglio, Paola, Capobianchi, Maria Rosaria, Ippolito, Giuseppe
Format: Journal Article
Language:English
Published: United States Public Library of Science 21.12.2018
Public Library of Science (PLoS)
Subjects:
Adolescent
Adult
Aged
Biology and life sciences
Chikungunya fever
Chikungunya Fever - epidemiology
Chikungunya Fever - genetics
Chikungunya virus
Chikungunya virus - genetics
Child
Child, Preschool
Climate change
Computer and Information Sciences
Control
Data processing
Disease Outbreaks
Disease transmission
Earth Sciences
Epidemiology
Female
Fever
Humans
Infant
Infant, Newborn
Infections
Infectious diseases
Italy - epidemiology
Male
Medicine and Health Sciences
Metropolitan areas
Middle Aged
Mosquitoes
Outbreaks
People and places
Population density
Risk factors
Urban areas
Urban Population
Vector-borne diseases
Viruses
Italy
Pakistan
Indian Ocean
Europe
ISSN:1932-6203, 1932-6203
Online Access:Get full text
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Description
Summary:On September 7, 2017, three potentially autochthonous cases of chikungunya were notified in the Lazio region. An Outbreak investigation based on established surveillance system data and molecular analysis of viral variant(s) were conducted. Epidemiological analysis suggested the occurrence of 3 main foci of local transmission. The major focus involved 317 cases with epidemiological link with the area of Anzio. The other two foci occurred in Rome (80 cases) and Latina (8 cases). Cumulative incidence in Anzio and Latina were 331.4 and 7.13 per 100,000 residents, respectively. Cumulative incidences ranged from 1.4 to 14.3/100,000 residents in Rome. This is the first report of a chikungunya outbreak involving a densely populated urban area in a western country. The outbreak probably started in Anzio, spread by continuity to neighbouring villages, and then to the metropolitan area of Rome and to the Latina area favoured by the touristic nature of the Anzio area.
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Competing Interests: The authors have declared that no competing interests exist.
Membership of the group is provided in the Acknowledgments
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0208896