NAVLE（北美执业兽医考题）Day 439

Q1:A dog presents with acute onset vomiting, hemorrhagic diarrhea and fever. On fecal examination, you find many large fluke eggs. You question the owner and discover that the dog was recently in Oregon on a boating trip. What agent is most likely causing the clinical signs in this dog?一只狗出现急性呕吐，出血性腹泻和发烧前来就诊。 在粪便检查中，你发现许多大型吸虫卵。 你询问主人后发现这条狗最近在俄勒冈州进行划船旅行。 什么最有可能导致这种狗的临床症状？Find out the answer by clicking on one of the listed choices. Good luck!点击列出的选项找出答案，祝大家好运