Bacteria populations can develop resistance to antibiotics because of?

Priscilla Jaskolski asked a question: Bacteria populations can develop resistance to antibiotics because of?
Asked By: Priscilla Jaskolski
Date created: Wed, Feb 24, 2021 5:14 PM
Date updated: Mon, Jun 27, 2022 11:16 PM


Top best answers to the question «Bacteria populations can develop resistance to antibiotics because of»

  • Mutations are one way for bacteria to become resistant to antibiotics. Some spontaneous mutations (or genes that have been acquired from other bacteria through horizontal gene transfer) may make the bacterium resistant to an antibiotic (See: Resistance mechanisms for information about how bacteria resist antibiotic action).

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Antibiotics save lives but any time antibiotics are used, they can cause side effects and lead to antibiotic resistance. Since the 1940s, antibiotics have greatly reduced illness and death from infectious diseases. However, as we use the drugs, germs develop defense strategies against them. This makes the drugs less effective. Antimicrobials Treat Infections Caused by Microbes. Microbes are very small living organisms, like bacteria.

In a given population of bacteria, many genes are present which express themselves in a variety of ways. In a natural environment, the genes (and traits) are freely mixed. When exposed to an antibiotic, most of the microbes die. But some, through a fortuitous genetic recombination, possess a resistance to the antibiotic.

Resistant P. aeruginosa and Acinetobacter could be especially dangerous in the long term because of their intrinsic resistance to some gram-negative antibiotics and their ready acquisition of DNA from other bacteria ensuring the spread of additional resistances. 111, 118 In a survey of select European countries they currently have the highest resistance rates to both carbapenems and aminoglycosides, two traditionally last resort antibiotics. 101, 102 P. aeruginosa resistance has ...

The study showed that, over time, bacteria exposed to low doses of antibiotics developed resistance to antibiotic levels that were more than a thousand times higher than the initial level to which...

Development of antibiotic resistance in bacteria is a disturbing trend in modern world. Bacteria are living organisms. Population of a particular bacteria would comprise of millions/billions of individual organisms.

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