How do bacteria develop antibiotic resistance

The other way that bacteria acquire resistance is through horizontal gene transfer. There are three different ways in which this can occur, but in each case genetic material is transferred from antibiotic-resistant bacteria to other bacterial cells, making them resistant to antibiotics as well.

Once bacterial cells acquire resistance, exposure to antibiotics kills off non-resistance bacteria, while the antibiotic-resistant bacteria proliferate. ARAC was created to preserve the effectiveness of antibiotics by engaging in research, advocacy and science-based policy. Mechanisms of Antibiotic Resistance.

Mechanisms of antibiotic resistance: Natural resistance due to an impermeable membrane or lack of a target; Modify antibiotic target; Produce an enzyme that inactivates antibiotics; Pump antibiotics out. Ways that Bacteria Acquire Resistance. Ways that bacteria acquire resistance: Mutation — Through the process of cell replication, some bacteria develop mutations that makes them resistant to antibiotics. Bacteria with the resistant mutation have a better chance of survival against antibiotics.

Minus Related Pages. On This Page. Some help us. Some make people, crops, or animals sick. Some of those germs are resistant to antibiotics. Antibiotics kill germs that cause infections. But antibiotic-resistant germs find ways to survive. Antibiotics also kill good bacteria that protect the body from infection. Antibiotic-resistant germs can multiply. Some resistant germs can also give their resistance directly to other germs.

Once antibiotic resistance emerges, it can spread into new settings and between countries. Top of Page. Germ Defense Strategies Antibiotics fight germs bacteria and fungi. Examples of Defense Strategies for Germs Germs can use defense strategies to resist the effects of antibiotics.

Here are a few examples. Resistance Mechanisms Defense Strategies Resistance Mechanisms Defense Strategies Description Restrict access of the antibiotic Germs restrict access by changing the entryways or limiting the number of entryways.

Get rid of the antibiotic Germs get rid of antibiotics using pumps in their cell walls to remove antibiotic drugs that enter the cell. Change or destroy the antibiotic Germs change or destroy the antibiotics with enzymes, proteins that break down the drug. In fact, germs will always look for ways to survive and resist new drugs. More and more, germs are sharing their resistance with one another, making it harder for us to keep up. Find more information on the development of antibiotic resistance in the latest AR Threats Report.

Skip directly to site content Skip directly to page options Skip directly to A-Z link. Section Navigation. Facebook Twitter LinkedIn Syndicate. About Antibiotic Resistance. Minus Related Pages. On This Page. Antibiotic Resistance Threatens Everyone Terms.