Resistance Spread

Multi-Strain Antibiotic Resistance via Horizontal Gene Transfer

Susceptible
Resistant
Multi-drug R
Plasmid
Resistance Prevalence
Generation:0
Susceptible:0
Single-R:0
Multi-drug R:0
Transfers:0

Resistance Spread

Antibiotic resistance genes can spread via horizontal gene transfer on plasmids. Conjugation allows direct DNA transfer between bacteria. Antibiotic pressure selects for resistance, but resistance often carries a fitness cost in the absence of antibiotics.