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What is a problem with the rapid evolution of antibiotic resistant bacteria?
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What are r plasmids and why are these a problem to humans?
R-plasmids contain genes for antibiotic resistance and they can be transferred among bacteria. It is common for gut bacteria of humans and other animals to spread antibiotic resistance this way. It is a problem for humans because many bacteria have become resistant to multiple antibiotics.
Is antibiotic resistance proof of evolution?
You have a population of bacteria that are all variant, morphologically and, rather redundantly, genetically. The antibiotic is applied and some of these bacteria are resistant ( this is simplistic, but valid ) and survive to reproduce. They have been naturally selected and their alleles, which conferred their resistance, are represented in the next generation of bacteria. This is evolution; the change in allele frequency over time in a population of organisms.
With respect to the problem of antibiotic-resistant tuberculosis which entity evolves?
bacterium
Explain how the excessive or inappropriate use of antibiotics poses a health hazards for human population?
Antibiotics are substances which kill or inhibit bacteria. The problem lies in the fact that bacteria tend to have fairly high mutation rates. These mutation rates yield some bacteria which are more resistant to the antibiotics than other bacteria. Since you have used an antibiotic to destroy all other bacteria in a person, the resistant bacteria is free to spread as much as it can, since the antibiotic used won't kill it. If this is the case, then the person would have to get a different, more appropriate antibiotic to kill the bacteria. In some cases, this can be done multiple times, and you end up with a super-bacteria called multi-antibiotic resistant bacteria. As use of antibiotics spread, so do strains of these MAR bacteria, which are much more deadly than their relatives So what can be done? First, use antibiotics less. Studies show that they are over-prescribed. Second, ensure that the proper antibiotic is prescribed. In some cases, an antibiotic which is incorrect for the job to be done is one of the culprits.
Can trichomoniasis be resistant to antibiotics?
Yes, there is an increasing problem with antibiotic resistance in trichomoniasis.
Why is the overuse of antibiotics a problem?
It exposes too many organisms to antibiotics, and exposing them too frequently. This results in the opportunity for the organisms to become resistant to the antibiotics. Antibiotic resistant bacteria are becoming a more and more serious public health threat.
What is mean by novel antibiotic?
A novel antibiotic refers to a new type of antibiotic that works in a unique way to target and kill bacteria. These antibiotics are typically developed to combat antibiotic-resistant strains of bacteria that are no longer effectively treated by existing antibiotics. Novel antibiotics play a crucial role in addressing the growing problem of antibiotic resistance.
What would happen if you didn't finish a course of antibiotics?
If you stop taking your antibiotic before you complete the course any surviving bacteria developes an immunity to that antibiotic. You must then take a different, usually stronger antibiotic to kill the infection. Once that happens that particular antibiotic usually will not work for any bacterial infection you may get.
What is antibiotic resistance and how does it occur?
Bacteria and other microorganisms that cause infections are remarkably resilient and can develop ways to survive drugs meant to kill or weaken them. This antibiotic resistance, also known as antimicrobial resistance or drug resistance, is due largely to the increasing use of antibiotics.
If an antibiotic kills 99.9 of a bacterial population what would happen to the next generation of bacteria?
If 99.9% are killed then 0.1% survived. If you are talking about 0.1% of say a 1 liter of some solution, this could still be hundreds or thousands of cells. Assuming that 99.9% are killed leads us to believe that the 0.1% are resistant to that particular antibiotic. These bacteria will reproduce and now we have a bunch of bacteria that we won't be able to kill the next time. If 0.1% remain, then next time using the same antibiotic we may only kill half or so because they have gained resistance. Each generation will have more resistance than the last. This ends up as a major problem. This is why many antibiotic resistant bacteria are so prevalent today.
What is the problem with bacteria resistant to antibiotics?
Because if some bacteria survive the antibiotics they become immune to that type of antibiotic. Then if you pass on the bacteria again the next person will not know which type of antibiotic to use.
What antibiotic to take with pyelonephritis and thrombopenia?
Thrombopenia (thrombocytopenia) is a condition that does not require an antibiotic. It is a problem with clotting. As far as pyelonephritis, whatever is causing this inflammation of the kidney must be have tests. Usually blood tests will show bacteria or viral antibodies. If a virus, no antibiotic is given. As far as the bacteria, the antibiotic is specific.
