Zika virus in asymptomatic blood donors in Martinique

Pierre Gallian, André Cabié, Pascale Richard, Laure Paturel, Rémi N. Charrel, Boris Pastorino, Isabelle Leparc-Goffart, Pierre Tiberghien and Xavier de Lamballerie

Article Figures & Data


  • Figure 1.

    Clinical symptoms and Zika viral loads in blood donors. The distribution of symptomatic donors according to time of inaugural symptoms (A) and the frequency of reported symptoms (B) are presented. Zika viral loads (log10 copies/mL) are provided in both asymptomatic and symptomatic blood donors (C). Zika viral load was determined by real-time reverse transcription polymerase chain reaction in 41 donors reporting clinical signs, and 34 donors who did not. The diagram reports for each series the quantitative distribution of viral load, together with the median value ± SD.

  • Figure 2.

    Epidemiological dynamics of Zika outbreak in Martinique. Figure 2A reports the cumulative incidence of Zika virus NAT detection in blood donors (normalized for 100 weekly blood donations). Figure 2B shows the simulated prevalence of Zika virus infections in blood donors at different points, based on incident cases and on different hypotheses for the duration of asymptomatic viremia (4-6 days). It also presents the actual seroprevalence data obtained by seroneutralization at weeks 8 and 22.