3.33 Antibiotic resistance

Understand how resistance to antibiotics can increase in bacterial populations

Staphylococcus aureus
- Skin infections
- Lung infections

Can be treated with metheciline
Antibiotic - Chemical can kill staph.

Type of staph. that can be killed with metheciline is called the susceptible form
MSSA - metheciline susceptible staph. aur.

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Random mutation to the genotype of the staph.
Bacteria does not die when given methe.
Resistant

MRSA - metheciline resistant staph. aur.

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Effects of use of antibiotics

MRSA increasing survival rate
Becomes more common

Resistance becoming an increasing problem within hospitals