Climate change is causing many vectors of infectious diseases to expand their geographic distribution as well as the pathogens they transmit are also conditioned by temperature for their multiplication. Within this context, it is worth highlighting the significant role that fleas can play as vectors of important pathogenic bacteria. For this purpose, our efforts focused on detecting and identifying a total of 9 bacterial genera ( sp.; sp.; sp.; sp., sp., sp., sp., sp. and sp.) within fleas isolated from domestic and peridomestic animals in the southwestern region of Spain (Andalusia). Over a 19-months period, we obtained flea samples from dogs, cats and hedgehogs. A total of 812 fleas was collected for this study. Five different species were morphologically identified, including , , , , and . sp. was detected in all five species identified in our study which a total prevalence of 86%. Within genus, two different species, and were mainly identified in and , respectively. On the other hand, our results revealed a total of 131 fleas testing positive for the presence of sp., representing a prevalence rate of 16% for this genus identifying two species and . Lastly, both and were detected in DNA of and , respectively isolated from dogs. With these data we update the list of bacterial zoonotic agents found in fleas in Spain, emphasizing the need to continue conducting future experimental studies to assess and confirm the potential vectorial role of certain synanthropic fleas.

中文翻译：

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从西班牙家养动物和家畜周围收集的不同种类跳蚤中致病菌的新记录。潜在的人畜共患威胁？

气候变化导致许多传染病媒介扩大其地理分布，并且它们传播的病原体也受到温度的影响而得以繁殖。在这种背景下，值得强调跳蚤作为重要病原菌载体所发挥的重要作用。为此，我们的工作重点是检测和鉴定从家养跳蚤中分离出的总共 9 个细菌属（sp.；sp.；sp.；sp.、sp.、sp.、sp.、sp. 和 sp.）以及西班牙西南部地区（安达卢西亚）的家养动物。在 19 个月的时间里，我们从狗、猫和刺猬身上获取了跳蚤样本。本研究共收集了 812 只跳蚤。从形态上鉴定出五个不同的物种，包括 、 、 、 和 。 sp。在我们研究中确定的所有 5 个物种中均检测到了这种病毒，总患病率为 86%。在属内，两个不同的种， 和 分别主要在 和 中鉴定。另一方面，我们的结果显示，共有 131 只跳蚤检测出 sp. 呈阳性，代表该属的流行率为 16%，识别出两个物种 和 。最后，分别在从狗身上分离出的 和 的 DNA 中检测到了 和 。利用这些数据，我们更新了在西班牙跳蚤中发现的细菌人畜共患病原体清单，强调需要继续进行未来的实验研究，以评估和确认某些共生跳蚤的潜在媒介作用。