Low antibiotic concentration is enough to increase antimicrobial resistance

Existing antimicrobial resistance may become increasingly prevalent on its own -- with no interference from antibiotics -- in compact bacterial communities known as biofilms, or when protozoa hunt bacteria for food. Even weak antibiotic concentrations are sufficient to cause a rise in the prevalence of antimicrobial resistance in bacterial populations cultured in laboratory conditions.

from Top Health News -- ScienceDaily https://ift.tt/2PFvFoH