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Volume 23, Number 4—April 2017

Dispatch

Zika Virus Seroprevalence, French Polynesia, 2014–2015

Maite AubryComments to Author , Anita Teissier, Michael Huart, Sébastien Merceron, Jessica Vanhomwegen, Claudine Roche, Anne-Laure Vial, Sylvianne Teururai, Sébastien Sicard, Sylvie Paulous, Philippe Desprès, Jean-Claude Manuguerra, Henri-Pierre Mallet, Didier Musso, Xavier Deparis, and Van-Mai Cao-Lormeau
Author affiliations: Institut Louis Malardé, Papeete, Tahiti, French Polynesia (M. Aubry, A. Teissier, C. Roche, S. Teururai, D. Musso, V.-M. Cao-Lormeau); Centre d’Épidémiologie et de Santé Publique des Armées, Marseille, France (M. Huart, S. Sicard, X. Deparis); Unité Mixte de Recherche Sciences Economiques et Sociales de la Santé et Traitement de l'Information Médicale, Marseille (M. Huart, S. Sicard, X. Deparis); Institut de la Statistique de la Polynésie Française, Papeete (S. Merceron); Institut Pasteur, Paris, France (J. Vanhomwegen, S. Paulous, J.-C. Manuguerra); Direction Départementale de la Cohésion Sociale et de la Protection des Populations, Yonne, France (A.-L. Vial); Direction de la Santé de la Polynésie Française, Papeete (A.-L. Vial, H.-P. Mallet); Université de La Réunion and UMR PIMIT, Sainte Clotilde, France (P. Desprès)

Main Article

Table

Zika virus seroprevalence among persons randomly recruited from the general population and among schoolchildren immediately after and 18 months after a Zika outbreak, French Polynesia, 2014 and 2015*

Sampled population, time of sampling, location of sampling Median age (range), y No. symptomatic/no. positive (% [95% CI]) No. asymptomatic/no. positive (% [95% CI]) Total no. seropositive/total no. tested (% [95% CI])
General population
February–March 2014
Society Islands 47 (13–77) 8/18 (44 [26–69]) 10/18 (56 [33–79]) 18/49 (37 [26–47])
Tuamotu Islands 39 (7–86) 12/22 (55 [34–75]) 10/22 (45 [25–66]) 22/49 (45 [38–52])
Marquesas Islands 45 (10–82) 16/28 (57 [39–75]) 12/28 (43 [24–61]) 28/49 (57 [47–68])
Austral–Gambier Islands 38 (7–84) 19/29 (66 [48–83]) 10/29 (34 [17–52]) 29/49 (59 [39–80])
Total
41 (7–86)
55/97 (57 [47–67])
42/97 (43 [33–53])
97/196 (49 [42–57])
September–November 2015




Society Islands
43 (4–88)
73/154 (47 [40–55])
81/154 (53 [45-61])
154/700 (22 [16–28])
Schoolchildren
May–June 2014




Society Islands 11 (6–16) 221/312 (71 [66–76[) 91/312 (29 [24–34]) 312/476 (66 [60–71])

*CIs were calculated taking into account the cluster sampling design (9) and using the Fisher exact test.

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