Giardiasis is a major diarrheal disease found throughout the world. The flagellate protozoan Giardia intestinalis (previously known as G lamblia or G duodenalis), its causative agent, is the most commonly identified intestinal parasite in the United States and the most common protozoal intestinal parasite isolated worldwide. Infection is more common in children than in adults

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拍攝者： Yasminhylmi