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Comparative analysis of susceptibility profiles to tetracycline and doxycycline in Neisseria gonorrhoeae isolates, indicating significant agreement between antibiotics.
Among 64 Neisseria gonorrhoeae isolates, the MIC50 of tetracycline was 1 µg/mL while the MIC90 was 16 µg/mL. The MIC50 of doxycycline was 1 µg/mL while the MIC90 was 8 µg/mL. The essential agreement between doxycycline and tetracycline was 92.2% (95% CI 82.7-97.4%).
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Liu et al. (2026) studied this question.
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