Conclusion: Cefdinir, gatifloxacin and levofloxacin has strong antibacterial activity in vitro against G(superscript +) and G(superscript -) bacterium.

• 结论：头孢地尼、加替沙星、左氧氟沙星对大部分革兰阳性及革兰阴性菌具有较强的抗菌活性。