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Viruses.
Antibiotics trigger a protective response by bacteria to form biofilms. Bacteria within a biofilm are thousands of times less susceptible to antibiotics than planktonic bacteria
Biofilms are generally thousands of times less sensitive to antibiotics than planktonic bacteria.
Bacteria, like all organisms, have phenotypic variations. Some bacteria are resistant to antibacterial drugs and survive the onslaught of these drugs. They then go on to have progeny ( by fission ) that they confer this resistance on so that you have a new population of resistant bacteria.
The prime function of the antibiotic is to kill the bacteria. Antibiotics work in two ways. It either kills the bacteria or it prevents it. Bacteria usually multiply in the body and they have single cell. Antibiotics does not attack the cell in the body, it only attacks the virus or bacteria and destroys it. An antibiotic has the capability of changing glucose into energy. It also forms a wall to prevent the virus from getting in. Different antibiotics have different method of working depending on the bacteria. Antibiotics specifically aims and attacks the bacteria. Hence the patient is always safe. Antibiotics also avoid the bacteria from multiplying. Antibiotics are safe to humans and animals but they do have side effects at times on some people. It is always advisable to consult your doctor before taking any kind of antibiotics.
The bacteria in the large intestine are very useful. You will not survive in the absence of these bacteria. Some times these bacteria are killed by broad spectrum antibiotics. The patient gets severe loose motion. The condition is called as pseudomembranous colitis.
Anitbiotics helps fight diseases by killing bacteria. Always remember these 3 rules: Antibiotics=bacteria Antiviral=virus Antifungal=fungus A certain type of medication can only be used for the disease it matches up with (antiviral will not kill a bacteria of fungus infection, only a virus)
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.
A virus is many times smaller than either an amoeba or a bacteria. Perhaps thousands would fit into a bacterial cell.
Viruses are non-living entities that show characteristics of living beings inside another living cell. Viruses consist of genetic material surrounded by protein coat. They lack organelles or membranes. Thus, they are very much smaller than bacterial cells which have membranes, and sometimes even organelles. In fact, many viruses inhabit bacterial cells. They are called bacteriophages. The smallest bacteria are in the order of .3 micrometers, while the largest viruses are in the order of 400 nanometers. A virus is smaller than bacteria A virus is smaller than bacteria
Mumps is caused by a virus. Viruses are not affected by antibiotics. The word antibiotic means against (anti-) life (bio-). Viruses are not living but are infectious particles. Some times antibiotics are used because there may be another infection caused by a bacteria involved at the same time.
This is a very complicated question but yes, antibiotics are being used in high frequency in our society and at times, they are prescribed wrongly. Antibiotics do not treat viral infections and the common cold or flu is viral - but doctors write a prescription because they diagnosed it wrong or because the patient is pressuring the doctor for a antibiotic. This leads to bacterial resistance to that specific antibiotic and in some cases, resistance to the entire class of that antibiotic. So if you take amoxicillin wrongly and bacteria becomes resistant, it becomes resistant to amoxicillin and all penicillin class of antibiotics. This is why we are seeing the rise of highly resistant strains of bacteria in this world such as VRSA (Vancomycin resistant) or MRSA (Methicillin resistant) bacterial strains.