Question

many animals carry the parasite giardia lamblia. when water is contaminated with feces from these animals, the water will carry the parasite. if a person drinks the water, he or she will become infected with giardia lamblia which will then travel to the persons intestine and cause the disease giardiasis. what are the most likely symptoms of the disease giardiasis?

a. severe diarrhea and intestinal cramps

b. ulcers in the mouth and on the skin

c. fever, fatigue, and rashes on the extremities

d. genital itching and frequent urges to urinate

Explanation:

贾第虫病是由蓝氏贾第鞭毛虫寄生在人体肠道引起的疾病，其典型症状是严重腹泻和肠道痉挛。

Answer:

A. severe diarrhea and intestinal cramps