Abstract
The fluoroquinolones is the first group of synthetic antibacterial agents available for clinical use. Since their introduction in the late 1980s, there has been a great expansion in the usage of fluoroquinolones as antimicrobial agents. Initially, these agents were primarily indicated in therapy of infections due to Gram negative bacteria and for prophylaxis in neutropenia or liver cirrhosis. With the introduction of agents with enhanced anti-Gram positive activities such as gatifloxacin and moxifloxacin, their indications have expanded to include acute bacterial infections of the respiratory tract and skin and soft tissue infections. Expectedly, resistance has become more prevalent among some organisms as the usage of this group of agents increased [1, 2]. The first resistant strains were found in microorganisms that are inherently less susceptible such as staphylococci andPseudomonas aeruginosa.However, reduced susceptibility or resistance has been recently broadened to Escherichia coli Salmonella spp.Campylobacter spp.Neisseria gonorrhoeae and Streptococcus pneumoniae.Wide variations in the rates of resistance have been reported depending on the bacterial species, clinical settings, origins of strains, geographic locations and pattern of usage. Generally speaking, resistance is more prevalent in developing countries than in developed parts of the world. In areas where there has been extensive veterinary use, particularly among food animals, resistance rates were also higher.
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Ho, PL., Cheng, V.C.C. (2003). Epidemiology and mechanisms of resistance. In: Ronald, A.R., Low, D.E. (eds) Fluoroquinolone Antibiotics. Milestones in Drug Therapy. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8103-6_3
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