Bacteria are eliminated with the help of various medicines, but among them, some have developed a certain resistance. Mechanisms of drug resistance are different, but the reason usually given is that there are too many drugs in the modern world (Annunziato, 2019). For example, they prevent bacterial infections in animal husbandry, and since the volume of animal husbandry is quite large, it becomes clear how many drugs are in the environment. Antibiotics effectively neutralize many types of bacteria, but not all. Bacteria and fungi actively fight against each other, and tablets as antibiotics are one of the most common means of struggle. People can peep the antibiotic molecule from some fungus and then improve it, but the original one arose in nature quite a long time ago. They have become an important factor in natural selection: bacteria cannot neglect them, and antibiotic-resistant ones are increasingly appearing in their populations, which means they have an advantage over those who are not resistant.
Acquired resistance is characterized by the ability of individual strains of microorganisms to survive at concentrations of antibiotics that can inhibit the bulk of the microbial population of a given species. With the further spread of antibiotic-resistant strains, they may become predominant. The overuse of antibiotics is the main cause of drug resistance in microorganisms. The more often people resort to antibiotics, the lower their effectiveness becomes. Prescribing strong drugs to patients who do not have bacterial infections is a useless but common practice.
Bacterial drug resistance is on the rise because many doctors prescribe too many antibiotics to their patients. Some types of microorganisms produce genes that protect them from the effects of drugs. Drug-resistant bacteria can cause serious diseases such as tuberculosis. This is one of the main threats of such microorganisms to humans.
Reference
Annunziato, G. (2019). Strategies to overcome antimicrobial resistance (AMR) making use of non-essential target inhibitors: A review. International journal of molecular sciences, 20(23), 5844. Web.