Coccidiosis is an intestinal infection caused by microscopic parasites known as coccidia. These parasites invade the cells of the intestinal lining, leading to symptoms such as diarrhea, weight loss, and dehydration. It primarily affects young animals, including poultry, cattle, and sheep, but can also occur in other species. The transmission of coccidia occurs through contaminated food, water, or environments. Infected animals shed the parasites in their feces, which can then infect others. Prevention strategies include maintaining good hygiene, providing clean water, and using medications when necessary to control outbreaks.