Basics
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Summary
Antibiotics are medicines that fight bacterial infections. Used properly, they can save lives. But there is a growing problem of antibiotic resistance. It happens when bacteria change and resist the effects of an antibiotic. Resistant bacteria may continue to grow and multiply.
Each time you take antibiotics there is a risk that the bacteria will become resistant. Resistant infections can be difficult and sometimes impossible to treat. They can spread to other people. Methicillin-resistant Staphylococcus aureus (MRSA) is one example. It causes infections that are resistant to several common antibiotics.
Antibiotic resistance can cause problems. To help prevent antibiotic resistance:
- Don't use antibiotics for viruses like colds or flu. Antibiotics don't work on viruses.
- Don't ask your health care provider to give you an antibiotic.
- When you take antibiotics, follow the directions carefully. Finish your medicine even if you feel better. If you stop treatment too soon, some bacteria may survive and re-infect you.
- Do not share your antibiotics with others.
- Don't save antibiotics for later or use someone else's prescription.
Centers for Disease Control and Prevention
Diagnosis and Tests
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Antibiotic Sensitivity Test
(National Library of Medicine) Also in Spanish
Prevention and Risk Factors
- Antibiotics and Antibiotic Resistance (Food and Drug Administration)
- Antimicrobial Resistance: Causes and How It Spreads (Centers for Disease Control and Prevention)
- Controlling the Emergence and Spread of Antimicrobial Resistance (Centers for Disease Control and Prevention)
Learn More
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How Antibiotic Resistance Happens
(Centers for Disease Control and Prevention) - PDF
Treatments and Therapies
- Combating Antibiotic Resistance (Food and Drug Administration)
- What Can Be Done about Antibiotic Resistance? (Alliance for the Prudent Use of Antibiotics)
Specifics
- About Carbapenem-resistant Enterobacterales (Centers for Disease Control and Prevention)
- Antimicrobial Resistance (World Health Organization) Also in Spanish
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Antimicrobial Resistance Threats
(National Institute of Allergy and Infectious Diseases)
- Antimicrobial Resistance, Food, and Food Animals (Centers for Disease Control and Prevention)
- Drug-Resistant Gonorrhea (Centers for Disease Control and Prevention)
- Vancomycin-resistant Enterococci (VRE) Basics (Centers for Disease Control and Prevention)
Images
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How Antibiotic Resistance Happens
(Centers for Disease Control and Prevention) - PDF
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How Antibiotic Resistance Spreads
(Centers for Disease Control and Prevention) - PDF
Videos and Tutorials
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Animation of Antimicrobial Resistance
(Food and Drug Administration)
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Antibiotics vs. Bacteria: Fighting the Resistance
(National Library of Medicine) Also in Spanish
Statistics and Research
- 2019 Antibiotic Resistance Threats Report (Centers for Disease Control and Prevention)
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Stamping Out Superbugs
(National Institutes of Health) Also in Spanish
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What Is Antibiotic Resistance?
(National Institute of General Medical Sciences)
Clinical Trials
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ClinicalTrials.gov: Antibiotic Resistance
(National Institutes of Health)
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ClinicalTrials.gov: Vancomycin-Resistant Enterococci
(National Institutes of Health)
Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: Molecular and phenotypic characterization of Streptococcus pneumoniae isolates in a Japanese...
- Article: Clinical efficacy of macrolide antibiotics in mycoplasma pneumoniae pneumonia carrying a...
- Article: Reassessment of the genetic basis of natural rifampin resistance in the...
- Antibiotic Resistance -- see more articles
Reference Desk
- Glossary (Antibiotics) (Alliance for the Prudent Use of Antibiotics)
Children
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Danger of Antibiotic Overuse (For Parents)
(Nemours Foundation) Also in Spanish
Patient Handouts
- Vancomycin-resistant enterococci - hospital (Medical Encyclopedia) Also in Spanish