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What are some good antibiotics for Serratia marcescens?

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Quick Answer

Antibiotics in the aminoglycoside family, such as amikacin, in combination with an antipseudomonal beta-lactam, such as cephalosporin, are the preferred option for fighting Serratia marcescens infections, according to Medscape. Drugs in the quinolone family also are highly active against most strains. Quinalones include the drugs ciproflaxacin and levofloxacin, explains Drugs.com.

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Many strains of Serratia marcescens are resistant to the aminoglycosides tobramycin and gentamicin, states Medscape.

Serratia marcescens is an opportunistic pathogen, which means that it infects particularly susceptible individuals, according to Scientific American. Serratia marcescens is one of the top 10 causes of neonatal, respiratory and surgical infections acquired in hospitals. Infections from the bacteria are potentially fatal. In 2011, nine people in Alabama died when they were infected by contaminated feeding tubes and bags.

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