【摘要】 目的　探讨抗生素对宿主体内菌群的影响。方法　应用微分方程定性理论分析抗生素作用的两菌群数学模型。结果　宿主体内微生态系统的平衡与失调与抗生素的输入浓度和各菌群的初始值有关。结论　临床上运用抗生素去治疗细菌感染性疾病时 ,必须十分注意抗生素的输入浓度和相关菌群的初始值 ,否则将可能会引起新的急性菌群失调。更多还原

【Abstract】 Objective To explore the effect of antibiotics on florae in the host. Methods Qualitative Theory of Ordinary Differential Equation was employed to analyze the mathematical model of two florae under the effect of antibiotics. Results The introduced concentration of the antibiotics and the initial value of bacteria were correlated with balance and imbalance of microecosystem. Conclusion Attention must be paid to the introduced concentration of antibiotics and the initial value of correlative bacteria in clinical treatment of bacterial infection related diseases to avoid leading to new acute flora imbalance.更多还原