Prevotella is a genus of bacteria commonly found in the human gut and oral cavity. These bacteria play a significant role in digestion and maintaining a balanced microbiome. Some species of Prevotella are associated with various health conditions, including periodontal disease and inflammatory bowel disease. Research has shown that the presence of Prevotella can influence the body's immune response and metabolism. While some strains are beneficial, others may contribute to disease. Understanding the role of Prevotella in human health is an ongoing area of study in microbiology and medicine.