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Through mutation of an existing virus into new forms. Usually, there is mutation of the protein coating of the virus that results in a new strain. The new strain may or may not be infectious to the same group or organism that was vulnerable to the original virus strain.
For a case example of how new viruses form, see the related question below that explains in detail what caused the new 2009 Pandemic Swine Flu virus. Also see the related question about the Lytic Cycle, which is the process that viruses use to attach to cells and reproduce.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agoThe virus proteins and nucleic acid assemble into new viruses
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What are the six stages of Bacteriophage attacking the cell?
1. Adsorption- when the virus attaches to the cell 2. Entry- when the virus's DNA is injected into the cell's 3. Replication- when the cell makes lots of new parts for new viruses 4. Assembly when the "virus pieces form new viruses 5. Lyse- when the cell explodes and the new viruses are released.
Who discovered the term superbug?
Anand Mohan Chakarwarty. The concept of a antibacterial-resistant strain of germ or virus is predicted by Evolutionary Theory.
Name 2 ways a virus can spread among humans?
Viruses are not living pathogens, they are "organisms" with the ability to duplicate themselves ~ but only if they have a living host to provide the energy and materials for the duplication process. Different viruses use different hosts and most of the time they don't cross over species for hosts, but some do. The H1N1/09 virus was able to mutate from a strain that pigs got to a strain more targeted toward people. Other viruses use plants and other animals for hosts.The short explanation of how this happens is:Virus is in the environmentHost is exposed to the virus in the environmentSome virus particles are able to attach to the cell walls of the cells of the host.The virus connects to the center of the cell and injects genetic material that the virus uses to instruct the host cell how to make virus duplicatesHost makes new virusesVirus duplicates get out of host cells and spread to infect more hostsSee the related questions below about the lytic cycle of viruses.
Can virus form spore?
That's their payload (Infected Code inject like a spore and they append the host code), the spore/ infected code can make growth for new computer virus.
Is the measles virus latent?
This virus is sometimes called a slow virus because it can be latent-like. It doesn't mean that it is in this form when it takes a few days to show symptoms after infection. This in called incubation. This form in measles stays in latency up to 10 years and will show then as a progressive brain disease and finally death.
What does meaning of avian virus?
Avian virus is a virus strain found in birds. This virus causes flu and it was reported that human death occurred due to this virus strain.
Why dont vaccines work?
They do work for the particular strain of the virus. The reason it doesn't stop everything is because the virus will mutate making a whole new strain and also making it impossible to have vaccines for every kind of flu out there.
What is measles bacteria or virus?
Measles is an infection of the respiratory tract that can be caused by both a bacteria and a virus. Most people think of the virus strain typically, as there is a vaccine for it, and people rarely need to be treated with antibiotics for the bacteria strain.
Can you give a cold back to the person who gave it to you?
Giving A Cold BackIf you are asking if you can give the cold back to the person that gave it to you so you will not be sick, the answer is no. If you are asking if you can give the same cold virus back to the person who originally gave it to you, then also no, since they will have immunity from having had that same cold virus infection recently.But, cold and flu viruses mutate rapidly. If the virus has mutated while inside you to a new form, by altering its proteins on the capsid (cover of the virus), then, yes, it could give the person who gave you the original cold virus the new form of that virus, which may make them sick again. However, if the new mutated virus is similar enough to the original form, then the body may have some "carry over" protection. But usually it is seen by the body as a brand new strain and then the person would become ill again with a new cold caused by the new mutated virus.
Is this the same Swine Flu of the 1970's?
No the A-H1N1/09 is a new strain of flu that has genetic material from three types of swine influenza viruses, avian flu virus and human flu virus. The "swine flu" in the mid 1970's was also an A-H1N1 influenza virus but quite a bit different than the pandemic strain.
Why did Michael Crichton name his book The Andromeda Strain?
Because it was about a virus strain that was thought to come from the Andromeda galaxy.
From what did the virus first leak in The Andromeda Strain?
a downed satellite
Is virus a pronoun?
No, the word virus is a noun, a singular, common, concrete noun; a word for a microbe, a thing.A pronoun is a word that takes the place of a noun in a sentence; the pronoun that takes the place of the noun virus is 'it'. Example sentence:The biologist studied the virus to see if it was a variant or a new strain.
Can a severe bout of the flu when you are young help protect you in the future?
Even a mild case of the flu will leave you immune to that same virus for life. However, flu viruses can mutate quickly into new forms, your immune system may recognize the new form as close enough to be able to prevent an infection by the similar strain, but it often happens that the new mutant virus is different enough that you will need to have a vaccination against it specifically, or to catch it to get natural immunity to the new form. See the related questions below for more information.
Who usually gets the commmon cold?
The common cold is a virus. There are multiple strains of this virus. Anyone who is infected by a strain to which they have not already been exposed will become ill. Once you have recovered your body will have adapted to that particular strain and will be able to fight it immediately should it ever attempt to infect you again. However, you will still be susceptible to "catching" a new strain. Science does not yet know of a way to destroy a virus without also destroying the cell it has infected and so there is no "magic cure" for a cold.
What are the 2 types of Ebola in the hot zone?
The Zairevirus strain, and the Sudan virus strain are two types of Ebola in the hot zone.
What disease does Swine Flu cause?
Influenza. It is caused by this new strain of virus that was isolated in Mexico and is now known to be the underlying organism that caused the 2009 pandemic.
