Antibiotics of the penicillin group, aminopenicillins have low toxicity and generate few side effects other than a risk of allergy. Forty to 50% of enterobacteria are resistant to these antibiotics (Goldstein 2000). Adding clavulanic acid-inhibiting beta-lactamases has increased the efficacy, but 30 % - 40 % of bacteria are currently resistant to it (Goldstein 2000). The aminopeni-cillins are very effective on streptococci. This group of antibiotics can be used without risk in pregnant women but after having verified the sensitivity of the bacterium on the antibiogram.
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