We discovered that V. parahaemolyticus in rich medium showed better competitive activity that those in less-rich medium, and the new O3:K6 competed better than environmental strain.

• 发现肠炎弧菌在高养分的情况下，能有较好的竞争能力，其中新O3:K6血清型的确比环境中肠炎弧菌竞争力好。