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    What is meant by strains of bacteria and mutation?
    Changing pathogens as i dont understand this.
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    (Original post by z_o_e)
    What is meant by strains of bacteria and mutation?
    Changing pathogens as i dont understand this.
    Strains = subtypes of a bacterial species, or virus.

    In a immunology setting, mutations give rise to different strains. These strains vary from each other - some may be more pathogenic/likely to cause illness, whilst others may have less effects. For example, Staphylococcus aureus is a gram positive bacteria associated with epidermal surfaces, and highly treatable in cases of infection. On the other hand, MRSA (a methicillin-resistant strain of Staphylococcus aureus) is a major issue in a clinical setting due to antibiotic resistance.
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    (Original post by zombiejon)
    Strains = subtypes of a bacterial species, or virus.

    In a immunology setting, mutations give rise to different strains. These strains vary from each other - some may be more pathogenic/likely to cause illness, whilst others may have less effects. For example, Staphylococcus aureus is a gram positive bacteria associated with epidermal surfaces, and highly treatable in cases of infection. On the other hand, MRSA (a methicillin-resistant strain of Staphylococcus aureus) is a major issue in a clinical setting due to antibiotic resistance.
    Thank you so much 💕 Can you explain MRSA? GCSE AQA.


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    MRSA is a major issue because it has resistance to other antibiotics. This resistance occurred due to natural selection (constant exposure to antibiotics). As MRSA can't be treated with the use of antibiotics, one of the common methods involves the scraping of infected tissue.

    Within a clinical setting, mrsa is a major issue due to open wounds in patients, or due to surgery.
 
 
 
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