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Antibiosis refers to the treatment of bacterial infections using antibiotics. These substances inhibit bacterial growth or kill bacteria directly.
Add as Preferred SourceAntibiosis refers to the treatment of bacterial infections using antibiotics. These substances inhibit bacterial growth or kill bacteria directly.
The term antibiosis originates from the Greek, meaning literally “against life.” In medicine, it refers to the targeted treatment of bacterial infections using antibiotics. These substances interfere with vital processes in bacteria without – when used correctly – harming human cells. Antibiosis is one of the most important therapeutic tools in modern medicine and has saved countless lives since the discovery of penicillin in the 1920s.
Antibiotics work in different ways depending on the class of the drug:
The main targets of antibiotics include:
Antibiosis is effective only against diseases caused by bacteria. It does not work against viruses, fungi, or parasites. Common indications include:
Before initiating antibiotic therapy, it is important to identify the causative pathogen whenever possible. This is done through microbiological tests such as swabs, blood cultures, or urine samples. An antibiogram can then be used to determine which antibiotics the pathogen is sensitive or resistant to, enabling the most effective therapy to be selected and avoiding unnecessary broad-spectrum treatment.
The dosage and duration of antibiotic treatment depend on:
It is important to complete the full course of antibiotic therapy even if symptoms have already resolved. Stopping treatment early may allow surviving bacteria to develop resistance.
In addition to their effects on pathogens, antibiotics can cause unwanted side effects:
One of the most pressing global health challenges is the growing problem of antibiotic resistance. Overuse or incorrect use of antibiotics – for example, in viral infections or as growth promoters in livestock farming – enables bacteria to develop mechanisms to resist these drugs. The World Health Organization (WHO) classifies antibiotic resistance as one of the greatest threats to global public health. Responsible use of antibiotics is therefore essential.
In certain situations, antibiotics are also used preventively, for example: