Van Hemert Caroline, Ballweber Lora R, Sinnett David R, Atwood Todd C, Fischbach Anthony, Gustine David D, Pabilonia Kristy L
U.S. Geological Survey Alaska Science Center, Anchorage, AK, USA.
Colorado State University Veterinary Diagnostic Laboratories, Fort Collins, CO, USA.
Food Waterborne Parasitol. 2023 Aug 29;32:e00206. doi: 10.1016/j.fawpar.2023.e00206. eCollection 2023 Sep.
and are zoonotic protozoan parasites that can infect humans and other taxa, including wildlife, often causing gastrointestinal illness. Both have been identified as One Health priorities in the Arctic, where climate change is expected to influence the distribution of many wildlife and zoonotic diseases, but little is known about their prevalence in local wildlife. To help fill information gaps, we collected fecal samples from four wildlife species that occur seasonally on the northern Alaska coastline or in nearshore marine waters-Arctic fox (), polar bear (), Pacific walrus (), and caribou ()-and used immunofluorescence assays to screen for cysts and oocysts. We detected cysts in 18.3% and oocysts in 16.5% of Arctic foxes ( = 109), suggesting that foxes may be potentially important hosts in this region. We also detected cysts in a single polar bear (12.5%; = 8), which to our knowledge represents the first such report for this species. Neither parasite was detected in walruses or caribou.
[寄生虫名称1]和[寄生虫名称2]是可感染人类及包括野生动物在内的其他分类群的人畜共患原生动物寄生虫，常引发胃肠道疾病。在北极地区，这两种寄生虫均被确定为“同一健康”重点关注对象，预计气候变化会影响许多野生动物和人畜共患疾病的分布，但对于它们在当地野生动物中的流行情况却知之甚少。为填补信息空白，我们从在阿拉斯加北部海岸线或近岸海水中季节性出现的四种野生动物——北极狐（[北极狐学名]）、北极熊（[北极熊学名]）、太平洋海象（[太平洋海象学名]）和驯鹿（[驯鹿学名]）——采集了粪便样本，并使用免疫荧光测定法筛查[寄生虫名称1]包囊和[寄生虫名称2]卵囊。我们在18.3%的北极狐（n = 109）中检测到了[寄生虫名称1]包囊，在16.5%的北极狐中检测到了[寄生虫名称2]卵囊，这表明北极狐可能是该地区潜在的重要宿主。我们还在一头北极熊中检测到了[寄生虫名称1]包囊（12.5%；n = 8），据我们所知，这是该物种的首例此类报告。在海象或驯鹿中均未检测到这两种寄生虫。
