1. Giardiasis is caused by the parasite Giardia lamblia and commonly results in diarrhea and abdominal pain.
原文:Giardiasis 是由Giardia lamblia寄生虫引起的,常见症状为腹泻和腹痛。
2. The most common route of transmission for giardiasis is through contaminated water or food.
原文:Giardiasis最常见的传播途径是通过污染的水或食物。