Microbial multidrug resistance.
Multiresistance plasmids and transposons, the integrons, the co-amplification of several resistance genes or finally the accumulation of independent mutations can lead to microorganisms resistant to multiple drugs. On the other hand multidrug resistance is due to an efflux pump conferring resistance to unrelated drugs. These microbial efflux pumps are belonging to various transporter families and are often encoded in microbial genomes. There is mounting evidence that these efflux systems are responsible for clinical multidrug resistance in bacteria, yeasts and parasites.
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Centre de Recherche en Infectiologie du Centre de Recherche du CHUL, Québec, Canada.
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