Some house cats carry a gut parasite that can infect humans, study finds

Image: Phys.org
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- Giardia duodenalis is a microscopic, flagellated parasite that often calls the human and animal gut its home. In most cases, it coexists harmlessly with its host, and most infected pets and people show no signs of illness. However, when it becomes pathogenic, it can cause diarrhea, digestive…