Sampling times and epidemic curve.

<p>Sampling times of serologic survey (Jan 1–Mar 28, 2010) shown relative to epidemic curve of pH1N1 cases and percent of ILI (influenza-like illness, ILI %) accounted for out-patient and emergency cases.</p

Ages and gestational weeks of pregnant women when serum samples were collected.

<p>*Kruskal-Wallis Test.</p

Seropositive rates of antibodies against pH1N1 in pregnant women and voluntary blood donors at the 4 sampling times.

<p>Seropositive rates, Proportion of titers of 1∶40 or more (%).</p><p>*Chi square tests.</p>†<p>Cochran-Armitage test.</p

Single- and multiple-variable conditional logistic regression analyses for identifying risk factors for scrub typhus.

<p>Single- and multiple-variable conditional logistic regression analyses for identifying risk factors for scrub typhus.</p

PCR and ELISA results of 187 cases.

<p>PCR and ELISA results of 187 cases.</p

Phylogenetic analysis based on the <i>O</i>. <i>tsutsugamushi</i> 56-kDa TSA gene.

<p>All the sequences of <i>O</i>. <i>tsutsugamushi</i> in this study marked with black triangles, were compared with other reference sequences available in GenBank. The MEGA 4.0 software was used for the phylogenetic analysis. The stability of the nodes was assessed using neighbor-joining cluster analysis with 1,000 bootstrap replications, and only bootstrap values.70% are shown at the nodes.</p

Demographic characteristics of the scrub typhus cases and controls that were enrolled in the study.

<p>Demographic characteristics of the scrub typhus cases and controls that were enrolled in the study.</p

Clinical and laboratory findings for scrub typhus cases of Jinjiang City.

<p>Clinical and laboratory findings for scrub typhus cases of Jinjiang City.</p