Giardiasis

Giardiasis is a disease caused by Giardia lamblia, characterized by diarrhea, emaciation, and malabsorption. It is distributed worldwide, being particularly common in warm and humid regions, with a global infection rate of 1% to 30%. The infection rate is even higher in children, reaching 50% to 70%. In China, it is also widely distributed, mostly occurring sporadically; however, under special circumstances, giardiasis is often contracted during travel, causing outbreaks, hence the name 'traveler's diarrhea.'