Pialoux G, Gauzere BA, Jaureguiberry S, Strobel M, 2007. Chikungunya, an epidemic arbovirosis. Lancet Infect Dis 7: 319–327.
Rezza G, Nicoletti L, Angelini R, Romi R, Finarelli AC, Panning M, Cordioli P, Fortuna C, Boros S, Magurano F, Silvi G, Angelini P, Dottori M, Ciufolini MG, Majori GC, Cassone A, CHIKV study group, 2007. Infection with Chikungunya virus in Italy: an outbreak in a temperate region. Lancet 370: 1840–1846.
Romi R, Di Luca M, Majori G, 1999. Current status of Aedes albopictus and Aedes atropalpus in Italy. J Am Mosq Control Assoc 15: 425–427.
Litzba N, Schuffenecker I, Zeller H, Drosten C, Emmerich P, Charrel R, Kreher P, Niedrig M, 2008. Evaluation of the first commercial Chikungunya virus indirect immunofluorescence test. J Virol Methods 149: 175–179.
Gérardin P, Perrau J, Fianu A, Favier F, 2008. Determinants of Chikungunya virus infection in the Reunion Island: results of the SEROCHIK seroprevalence survey in the population, August–October 2006. Bull Epidemiol Hebd 38-39-40: 361–363.
Sissoko D, Moendandze A, Malvy D, Giry C, Ezzedine K, Solet JL, Pierre V, 2008. Seroprevalence and risk factors of Chikungunya virus infection in Mayotte, Indian Ocean, 2005–2006: a population-based survey. PLoS One 3: e3066.
Rizzo C, Poletti P, Ajelli M, Seyler T, Pugliese A, Salmaso S, Merler S. Investigating the transmission potential and the impact of control measures of the 2007 Chikungunja fever outbreak in Italy. In: Abstracts of the 2008 European Scientific Conference on Applied Infectious Disease Epidemiology (ESCAIDE). Berlin, Germany, November 19–21, 2008. Abstract: 20080187.
Renault P, Solet JL, Sissoko D, Balleydier E, Larrieu S, Filleul L, Lassalle C, Thiria J, Rachou E, de Valk H, Ilef D, Ledrans M, Quatresous I, Quenel P, Pierre V, 2007. A major epidemic of Chikungunya virus infection on Reunion Island, France, 2005–2006. Am J Trop Med Hyg 77: 727–731.
Boëlle PY, Thomas G, Vergu E, Renault P, Valleron AJ, Flahault A, 2008. Investigating transmission in a two-wave epidemic of Chikungunya fever, Réunion Island. Vector Borne Zoonotic Dis 8: 207–217.
Renault P, Siisoko D, Ledrans M, Pierre V, Brucker G, 2008. Chikungunya outbreak on the Reunion Island and Mayotte, France, 2005–2006: context and questions raised for surveillance and evaluation. Bull Epidemiol Hebd 38-39-40: 343.
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After an outbreak of Chikungunya infection in Emilia-Romagna Region (North-eastern Italy), a survey was performed to estimate the seroprevalence of antibody to Chikungunya virus and the proportion of asymptomatic infections, to identify factors associated with infection, and evaluate the performance of the surveillance system. The method used was a survey on a random sample of residents of the village with the largest number of reported cases. The prevalence was 10.2% (33 of 325), being higher in older people and males, and lower when window screens and insect repellents were used. Only 18% of infected persons were fully asymptomatic, 85% of the 27 symptomatic confirmed cases satisfied the surveillance case definition, and 63% of the persons meeting the criteria for suspect case were identified by the active surveillance system. This study provides basic parameters for modeling the transmission potential of outbreaks and planning control measures for Chikungunya infection in temperate settings.
Authors' addresses: Maria Luisa Moro, Carlo Gagliotti, and Elisa Grilli, Area Rischio Infettivo, Agenzia Sanitaria e Sociale Regione Emilia-Romagna, E-mails: mlmoro@regione.emilia-romagna.it, cgagliotti@regione.emilia-romagna.it, and egrilli@regione.emilia-romagna.it. Giuliano Silvi and Raffaella Angelini, Dipartimento di Sanità Pubblica, Azienda USL Ravenna, E-mails: g.silvi@ausl.ra.it and r.angelini@ausl.ra.it. Vittorio Sambri, Nadir Spataro, and Anna Maria Pierro, Dipartimento di Ematologia, Oncologia e Microbiologia “L. e A. Seragnoli”, Università Degli Studi di Bologna, Centro di Riferimento Regionale per le Emergenze Microbiologiche - CRREM, Azienda Ospedaliera - Universitaria S.Orsola- Malpighi, Bologna, E-mails: vittorio.sambri@unibo.it, nadir.spataro@unibo.it, and anna.pierro@studio.unibo.it. Giovanni Rezza, Dipartimento di Malattie Infettive, Parassitarie ed Immunomediate, Istituto Superiore di Sanità, E-mail: giovanni.rezza@iss.it. Erika Massimiliani, Andrea Mattivi, Alba Carola Finarelli, and Pierluigi Macini, Servizio Sanità Pubblica, Assessorato alle Politiche per la Salute, Regione Emilia-Romagna, E-mails: emassimiliani@regione.emilia-romagna.it, amattivi@regione.emilia-romagna.it, acfinarelli@regione.emilia-romagna.it, and pmacini@regione.emilia-romagna.it. Thomas Seyler, National Centre of Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità, Rome, Italy; European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden, E-mail: thomas.seyler@gmail.com.
Pialoux G, Gauzere BA, Jaureguiberry S, Strobel M, 2007. Chikungunya, an epidemic arbovirosis. Lancet Infect Dis 7: 319–327.
Rezza G, Nicoletti L, Angelini R, Romi R, Finarelli AC, Panning M, Cordioli P, Fortuna C, Boros S, Magurano F, Silvi G, Angelini P, Dottori M, Ciufolini MG, Majori GC, Cassone A, CHIKV study group, 2007. Infection with Chikungunya virus in Italy: an outbreak in a temperate region. Lancet 370: 1840–1846.
Romi R, Di Luca M, Majori G, 1999. Current status of Aedes albopictus and Aedes atropalpus in Italy. J Am Mosq Control Assoc 15: 425–427.
Litzba N, Schuffenecker I, Zeller H, Drosten C, Emmerich P, Charrel R, Kreher P, Niedrig M, 2008. Evaluation of the first commercial Chikungunya virus indirect immunofluorescence test. J Virol Methods 149: 175–179.
Gérardin P, Perrau J, Fianu A, Favier F, 2008. Determinants of Chikungunya virus infection in the Reunion Island: results of the SEROCHIK seroprevalence survey in the population, August–October 2006. Bull Epidemiol Hebd 38-39-40: 361–363.
Sissoko D, Moendandze A, Malvy D, Giry C, Ezzedine K, Solet JL, Pierre V, 2008. Seroprevalence and risk factors of Chikungunya virus infection in Mayotte, Indian Ocean, 2005–2006: a population-based survey. PLoS One 3: e3066.
Rizzo C, Poletti P, Ajelli M, Seyler T, Pugliese A, Salmaso S, Merler S. Investigating the transmission potential and the impact of control measures of the 2007 Chikungunja fever outbreak in Italy. In: Abstracts of the 2008 European Scientific Conference on Applied Infectious Disease Epidemiology (ESCAIDE). Berlin, Germany, November 19–21, 2008. Abstract: 20080187.
Renault P, Solet JL, Sissoko D, Balleydier E, Larrieu S, Filleul L, Lassalle C, Thiria J, Rachou E, de Valk H, Ilef D, Ledrans M, Quatresous I, Quenel P, Pierre V, 2007. A major epidemic of Chikungunya virus infection on Reunion Island, France, 2005–2006. Am J Trop Med Hyg 77: 727–731.
Boëlle PY, Thomas G, Vergu E, Renault P, Valleron AJ, Flahault A, 2008. Investigating transmission in a two-wave epidemic of Chikungunya fever, Réunion Island. Vector Borne Zoonotic Dis 8: 207–217.
Renault P, Siisoko D, Ledrans M, Pierre V, Brucker G, 2008. Chikungunya outbreak on the Reunion Island and Mayotte, France, 2005–2006: context and questions raised for surveillance and evaluation. Bull Epidemiol Hebd 38-39-40: 343.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 1156 | 923 | 593 |
| Full Text Views | 663 | 7 | 0 |
| PDF Downloads | 180 | 10 | 0 |