New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence
Objectives: An epidemic of Ross River virus (RRV) occurred in the South Pacific in 1979–1980, but RRV has not been thought to occur endemically outside Australia and Papua New Guinea. A seroprevalence study was conducted to determine whether RRV has circulated in American Samoa since 1980. Methods:...
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doaj-488cebc560de45a79b6d2f1f563dfa8b2020-11-24T23:15:27ZengElsevierInternational Journal of Infectious Diseases1201-97121878-35112017-04-0157C737610.1016/j.ijid.2017.01.041New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergenceColleen Lau0Maite Aubry1Didier Musso2Anita Teissier3Sylvie Paulous4Philippe Desprès5Xavier de-Lamballerie6Boris Pastorino7Van-Mai Cao-Lormeau8Philip Weinstein9Research School of Population Health, Australian National University, 62 Mills Rd, Canberra, Australian Capital Territory, ACT 0200, AustraliaInstitut Louis Malardé, Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Papeete, Tahiti, French PolynesiaInstitut Louis Malardé, Papeete, Tahiti, French PolynesiaInstitut Pasteur, Paris, FranceLa Reunion island University and UMR 134 PIMIT, 97491 Sainte-Clotilde, FranceUMR Emergence des Pathologies Virales, Aix Marseille University, Marseille, FranceUMR Emergence des Pathologies Virales, Aix Marseille University, Marseille, FranceInstitut Louis Malardé, Papeete, Tahiti, French PolynesiaThe University of Adelaide, Adelaide, South Australia, AustraliaObjectives: An epidemic of Ross River virus (RRV) occurred in the South Pacific in 1979–1980, but RRV has not been thought to occur endemically outside Australia and Papua New Guinea. A seroprevalence study was conducted to determine whether RRV has circulated in American Samoa since 1980. Methods: RRV ELISA IgG was performed on 200 serum samples collected in American Samoa in 2010; seroneutralization tests were performed on 60 representative samples. Results: Of 196 available ELISA IgG results, 145 (74%, 95% confidence interval 67–80%) were seropositive. Of the 60 samples subjected to seroneutralization testing, none of the 15 ELISA IgG-negative and 16 of the 45 ELISA IgG-positive samples neutralized RRV. ELISA IgG seroprevalence was higher in persons born before/during the 1979–1980 RRV outbreak (78.3%), but was also high (63.0%) in people born after the outbreak who had lived their entire lives in American Samoa. Conclusions: This study provides serological evidence that RRV circulation is likely to have occurred in American Samoa after 1980. Considering there are no marsupials in American Samoa, this finding implies that other species are capable of acting as reservoir hosts and indicates the potential for RRV to circulate in a much wider area than those currently recognized.http://www.sciencedirect.com/science/article/pii/S1201971217300449River virusArbovirusesEmerging infectious diseasesEcologyPacific IslandsEpidemiology |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Colleen Lau Maite Aubry Didier Musso Anita Teissier Sylvie Paulous Philippe Desprès Xavier de-Lamballerie Boris Pastorino Van-Mai Cao-Lormeau Philip Weinstein |
spellingShingle |
Colleen Lau Maite Aubry Didier Musso Anita Teissier Sylvie Paulous Philippe Desprès Xavier de-Lamballerie Boris Pastorino Van-Mai Cao-Lormeau Philip Weinstein New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence International Journal of Infectious Diseases River virus Arboviruses Emerging infectious diseases Ecology Pacific Islands Epidemiology |
author_facet |
Colleen Lau Maite Aubry Didier Musso Anita Teissier Sylvie Paulous Philippe Desprès Xavier de-Lamballerie Boris Pastorino Van-Mai Cao-Lormeau Philip Weinstein |
author_sort |
Colleen Lau |
title |
New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence |
title_short |
New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence |
title_full |
New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence |
title_fullStr |
New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence |
title_full_unstemmed |
New evidence for endemic circulation of Ross River virus in the Pacific Islands and the potential for emergence |
title_sort |
new evidence for endemic circulation of ross river virus in the pacific islands and the potential for emergence |
publisher |
Elsevier |
series |
International Journal of Infectious Diseases |
issn |
1201-9712 1878-3511 |
publishDate |
2017-04-01 |
description |
Objectives: An epidemic of Ross River virus (RRV) occurred in the South Pacific in 1979–1980, but RRV has not been thought to occur endemically outside Australia and Papua New Guinea. A seroprevalence study was conducted to determine whether RRV has circulated in American Samoa since 1980.
Methods: RRV ELISA IgG was performed on 200 serum samples collected in American Samoa in 2010; seroneutralization tests were performed on 60 representative samples.
Results: Of 196 available ELISA IgG results, 145 (74%, 95% confidence interval 67–80%) were seropositive. Of the 60 samples subjected to seroneutralization testing, none of the 15 ELISA IgG-negative and 16 of the 45 ELISA IgG-positive samples neutralized RRV. ELISA IgG seroprevalence was higher in persons born before/during the 1979–1980 RRV outbreak (78.3%), but was also high (63.0%) in people born after the outbreak who had lived their entire lives in American Samoa.
Conclusions: This study provides serological evidence that RRV circulation is likely to have occurred in American Samoa after 1980. Considering there are no marsupials in American Samoa, this finding implies that other species are capable of acting as reservoir hosts and indicates the potential for RRV to circulate in a much wider area than those currently recognized. |
topic |
River virus Arboviruses Emerging infectious diseases Ecology Pacific Islands Epidemiology |
url |
http://www.sciencedirect.com/science/article/pii/S1201971217300449 |
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