anti-biotics
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what do anti biotics do
Fight bacterial infection There are two types of anti-biotics (bactericidal and bacteriostatic)
what does bactericidal do?
Fast killing Kills bacteria by changing the structure of cell wall or membrane disrupting action of essential enzymes
what does bacteriostatic do?
Slow killing Stops bacteria reproducing by interrupting protein synthesis
how does antibiotic resistance occur
Overuse of antibiotics in medicine and agriculture - Doctors prescribe anti-biotics to prevent instead of treat
broad spectrum anti biotic
• Affect wide range of different types of bacteria
Narrow spectrum
will only affect specific bacteria
Multiple drug resistance
• Strains of bacteria resistant to most or all available types of antibiotics
Total drug resistance
• Resistant to all known drugs, Australia affected by gonorrhoea