Survival of <i>Trem-2</i><sup><i>-/-</i></sup> mice, but not of <i>Trem-1/3</i><sup><i>-/-</i></sup> mice, is enhanced in experimental melioidosis.


<p>Survival was observed for every 4-6h, up to a maximum of 14 days after intranasal inoculation with 5 x 102 CFU <i>B</i>. <i>pseudomallei</i> in wild-type (WT; closed circles) and <i>Trem-1/3</i><sup><i>-/-</i></sup> mice (open circles; <i>A</i>). Similarly, survival of WT (closed circles) and <i>Trem-2</i><sup><i>-/-</i></sup> mice (open circles) was determined (<i>B</i>) (n = 20 per group). The <i>P</i> value indicates significance of the difference in survival between <i>Trem-2</i><sup><i>-/-</i></sup> and WT mice (Kaplan-Meier analysis, followed by a log-rank test). ns = not significant. In addition, WT (closed circles) and <i>Trem-2</i><sup><i>-/-</i></sup> mice (open circles) were infected with 5 x 102 colony forming units (CFU) of <i>B</i>. <i>pseudomallei</i> intranasally (n = 5–6 mice per group) and sacrificed 72 h post-infection, in order to determine bacterial loads in lung homogenates (<i>C</i>), broncho-alveolar lavage fluid (BALF) (<i>D</i>), whole blood (<i>E</i>), liver (<i>F</i>) and spleen (<i>G</i>). Data are expressed as mean ± SEM, n = 5-6/group. ** <i>P</i>< 0.01. BC+ denotes positive blood cultures (Mann-Whitney <i>U</i> test).</p

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