1. 6 kinds of them are Nematoda(Toxocara ganis,Toxascaris leouina ,Capillaria, Ancylostoma braziliese, Physaloptera canis and Ancylostoma ganinum);
   线虫6种(犬弓首蛔虫、犬钩虫、狮蛔虫、巴西钩口线虫、犬鞭虫和犬胃线虫)；
2. Roundworms (see also toxocariasis) infecting the dog include Toxocara canis and Toxascaris leonina. Signs are usually mild, but may include diarrhea, pot-bellied appearance, poor growth, and vomiting.
   蛔虫病，又称弓首线虫病，是由犬弓首蛔虫和狮蛔虫引起的疾病。症状通常比较温和，但也可能包括腹泻、腹部胀大、发育迟缓和呕吐。
3. The human infections of Diphyllobothrium latum，Toxocara canis，and Triodontophorus minor discovered by Lin(1924) from Beijing were the first records in the country.
   林几(1924)在北京发现阔节裂头绦虫，犬弓蛔虫，微小三齿线虫等肠道寄生虫的人体感染者，均为我国首次报道。

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