Swedish Institute for Communicable Disease Control, Solna, Sweden.
Euro Surveill. 2013 May 9;18(19):20478.
Free-living wild birds worldwide act as reservoir for Chlamydia psittaci, but the risk of transmission to humans through contact with wild birds has not been widely documented. From 12 January to April 9 2013, a total of 25 cases of psittacosis were detected in southern Sweden, about a threefold increase compared with the mean of the previous 10 years. A matched case-control study investigating both domestic and wild bird exposure showed that cases were more likely than controls to have cleaned wild bird feeders or been exposed to wild bird droppings in other ways (OR: 10.1; 95% CI: 2.1-47.9). We recommend precautionary measures such as wetting bird feeders before cleaning them, to reduce the risk of transmission of C. psittaci when in contact with bird droppings. Furthermore, C. psittaci should be considered for inclusion in laboratory diagnostic routines when analysing samples from patients with atypical pneumonia, since our findings suggest that psittacosis is underdiagnosed.
世界各地的自由放养野生鸟类是鹦鹉热衣原体的储存宿主，但通过与野生鸟类接触将其传播给人类的风险尚未得到广泛记录。从 2013 年 1 月 12 日至 4 月 9 日，瑞典南部共发现 25 例鹦鹉热病例，与前 10 年的平均值相比增加了两倍多。一项针对家养和野生鸟类接触的匹配病例对照研究表明，与对照组相比，病例组更有可能清洁野生鸟类的喂食器，或通过其他方式接触野生鸟类粪便（OR：10.1；95%CI：2.1-47.9）。我们建议采取预防措施，例如在清洁前将鸟食弄湿，以减少接触鸟类粪便时传播 C. psittaci 的风险。此外，当分析来自非典型肺炎患者的样本时，应考虑将 C. psittaci 纳入实验室诊断常规，因为我们的研究结果表明，鹦鹉热的诊断不足。
