Antibiotics can be both chemical and natural. they kill cells by blocking certain properties which lead to cell production such as penicillin which blocks formation of cell walls.
virus are different in that they are not cells but instead are parasites which cannot exist outside a cell. Virus inject their DNA into a cells and undergo a lytic or lysogenic cycle which leads to production of more viruses. This kills the cells. Also any cells which are detected by the virus are killed by our defense.
There is no cure to a virus however they can be treated or prevented. the most efficient way is vaccination in which weak strains of the virus is injected into a patient. this leads to the patient developing antibodies and memory cells which remember the virus and is much quicker in mounting an immune response when the actual virus is acquired. The is a flu vaccine however the flu virus is not stable and mutates to form new strains and hence the vaccine is not always effective.
Viruses inject their DNA into cells by attaching to cell receptors. many drugs for incurable viruses like HIV control this by causing the cell receptors to shut down and allow the viruses to enter cells.
2007-09-26 21:25:42
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answer #1
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answered by Anonymous
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Antibiotics do not harm viruses. Doctors prescribe antibiotics to prevent secondary infections which can result from the flu. However, the flu itself cannot be cured by antibiotics. This is because viruses mutate. They change their structure. When they change their structure, the antibiotic cannot recognize the virus. In order to destroy the virus, the antibiotic has to first identify the virus. If the antibiotic cannot identify the virus it cannot kill it. So they have no affect against viruses.
2016-04-10 13:41:59
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answer #2
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answered by Anonymous
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RE:
Viruses cannot be killed by antibiotics..Why??
Antibiotics is a chemical that kills a particular cell, by blocking cell production. Viruses are not cells. This is why you can't get rid of a cold.
Viruses invade one cell which produce a strand of DNA then codes for the production of more viral RNA (retroviruses) producing new viruses and...
2015-08-19 00:58:51
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answer #3
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answered by Darian 1
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Antibiotics are for bacterial infections only!!! the doctor that gave the prescription for the antibiotic is giving it to you so you do not get a secondary infection while your immune system is compromised by the virus. this is a great way of creating an antibiotic resistant bacteria which is not a great thing you should only take antibiotics WHEN you have a bacterial infection and ONLY then. I am not a doctor nor do I know anything about your medical history but I would recommend that you do not take the Antibiotics. just get a lot of rest drink a lot of fluids I know it sounds old fashion but if its just flu then your body should be able to take care of it
2016-03-16 22:57:57
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answer #4
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answered by Anonymous
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Well, the body kills viruses by creating protein antibodies which attach to the virus, destroying it. Afterwards, the body keeps a copy of that protein to stop the virus from striking again. There are many, many kinds of viruses out there, and the only "cure" out there is preventative. Vaccines can stop viruses like the flu from spreading by introducing weakened bits of the virus for the body to develop antibodies to. Even then, the vaccines out there, for the flu, for example, only cover the two or three most common types of flu viruses.
The reason there's no cure for the common cold is the sheet number of different viruses which cause it. It would be impractical (probably impossible) to make a vaccine that could prepare the body for all of them.
2007-09-26 18:49:37
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answer #5
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answered by Steve Urueta 1
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An antibiotic works specifically on some mechanism of the disease-causing germ, such as interfering with its cell wall building (penicillin) or with protein synthesis by bacterial mechanisms (tetracycline). Viruses can be killed by antiviral medicines, but these are not the traditional antibacterial medicines (usually called "antibiotics"). You basically have to interfere with the virus DNA or RNA using the cell's mechanisms to produce more viruses.
2007-09-26 21:16:23
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answer #6
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answered by Howard H 7
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ANTIBIOTICS
it cure human diseases caused by bacteria, fungus and protozoa. it does'nt kill virus. But....
VACCINES
vaccines only kills viruses like hepatitis B virus, rabies virus and polio virus!
2007-09-26 23:08:17
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answer #7
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answered by niki 2
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Because antibiotic works on BACTERIA.
2007-09-26 22:14:27
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answer #8
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answered by calendar2006 1
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No cure. Yet.
2007-09-26 18:43:00
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answer #9
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answered by Anonymous
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