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Respiratory Tract Infection Resource for Patients

Antibiotic Resistance

Bacteria

In most cases of bacterial infection, antibiotics kill the bacteria or stop them from growing.

However, some types of bacteria have become resistant to particular antibiotics; this means they have adapted themselves to fight the efficacy of those drugs that now no longer work against them. Bacteria are more likely to become resistant if an antibiotic course is not completed as prescribed, if the dosing is inadequate, or if antibiotics are used too often.

If an antibiotic does not kill off all the bacteria causing the infection:

  • The bacteria that remain start to multiply, causing the infection to return
  • Using the same antibiotic in future may not be as effective, so resistant bacteria must be treated with different antibiotics

To avoid antibiotic resistance it’s important to complete the full course of treatment as prescribed by your doctor, even if all your symptoms seem to have been relieved.


The information provided on this website does not replace a consultation with a medical professional. If you have any concern about your condition please contact a medical professional.














  • MYTHS AND FACTS
  • Myth: Our bodies become resistant to antibiotics.

    Fact: It is the bacteria rather than our bodies that develop resistance to antibiotics.

  • FAQ
  • Q: What can I do to reduce the risk of antibiotic resistance spreading?

    A: Bacteria can become resistant to antibiotic treatment and the more that the resistance spreads across the population the less effective antibiotic treatments will become. To reduce the risk of resistance spreading:

    • Make sure you take your antibiotics exactly as prescribed
    • Regular and thorough hand washing will help keep you healthier and reduce spread of avoidable infections and the need to use antibiotics

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