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Viruses (biological)

Parent Category: Microbiology
A virus is a small infectious agent that can replicate only inside the living cells of organisms. Viruses display a wide diversity of shapes and sizes, called morphologies. Generally viruses are much smaller than bacteria. Most viruses that have been studied have a diameter between 10 and 300 nanometres.


No bacteria is huge compared to a virus
You can get it from wild animals such as stray dogs. Or they did not get their shots.
Viruses first need to enter a host, then infect a living cell  within the host. The virus does this by using proteins that  essentially act like a key to enter a host cell. Once the virus is  inside it alters the DNA of the cell so that the host cell  essentially begins to make copies of the...
Technically, no.. that is why viruses are hard to treat. When you have a bacterial infection, you go to the doctors and he gives you antibiotics which kills the bacteria and makes you better. However if you have a viral infection, ever notice how you dont get any prescription? That's because of the...
Rabies is a viral disease caused by a virus infected dog biting. It is most prevalent in countries of Asia and Africa. It is estimated that rabies causing 55,000 human deaths annually.
Ebola virus is one of five known viruses within the genus  Ebolavirus. Four of the five known ebolaviruses, including EBOV,  cause a severe and often fatal hemorrhagic fever in humans and  other mammals, known as Ebola virus disease.
virus are connecting link between living and non-living. As they possess the capabilty of multiplying themselves which is the general propertiy of living beings but they can not multiply all alone or we can say that they need a living cell as a host in which they can take over the DNA replication...
No. The vaccine is only a part of the virus that your body willrespond to.
It has matching proteins on it's capsid that match ones on certainhost cells.
Rabies causes inflammation of the brain in human
Self replication, metabolism, nutrient uptake and excretion, areall absent in viruses
Yes they can stay dorman for a while and active again. In some bacteriaphages there is a replicaiton cycle exist called lysogenic cycle where the phage DNA kept dormant in host. but this can change when a stimuli triggers them, it enters to lytic cycle and kill the host.
The word rabies has its origin from the Sanskrit word "rabha" meaning Rage.
It only takes up to a couple of weeks to die from the Ebola virus.  It takes about the same amount of time to recover from the virus.  About 40% of people survive after being infected.
Influenza, commonly known as the flu, is a disease of the respiratory system. It affects the lungs, throat, and sinuses.
India has the most cases of rabies per year.
Virus penetrates its genetic material into the host. The genome is then inserted randomly on a point of the host genome. Since it is an random event, it can block a pathway of that particular or cause any mutation due to the insertion of viral genome.
It is difficult because viruses lack the ability to replicate themselves and theey lacks energy metabolism and other pathways that living things have. Viruses are totally depending on their host. If they want to replicate, they have to infect the host.
You really should rest when you have an infection like the flu. Since the symptoms usually last only a week for most people, try to avoid the exercise if you can. If you must exercise, it should be light exercise only. Working with weights and other heavy exercise or running should be avoided. Your...
They can be used in genetic modification as a vector to insert gene  into the genome of a target cell.    This has happened naturally in a few occasions, hence why much of  human DNA is derived from viruses (retroviral DNA).
Rabies is a viral disease.
Viruses are too small for van Leeuwenhoek to have seen with his simple microscope.
Yes, it can be a common symptom of the flu. Fluid in the inner ear, drugs, sugar and excessive amounts of caffeine have also been known triggers. Maintain hydration.
It depends. Ebola virus Is a highly infectious disease. It is spread not only by the living, but also by the dead. Funeral ceremonies can be a source of exposure of the virus to a large gathering of people. In countries where cadavers of people who died of Ebola are not handled aseptically, the...
  == Answer ==   you can contract rabies from blood, tears, and saliva of any infected animal.
If you are over 18. The NSAID (non-steroidal anti-inflammatory drug) Aspirin (ASA, acetylsalicylic acid) can be used as an antipyretic - which means, it will help to reduce fever. Fever reducers are good to use if the fever is high, e.g., 102 F (38.89 C) or over . It is better for many people to...
viruses are those living organisms which live inside the host cell and reproduce but its free means outside the cell they cannot respire ,reproduce etc thats why we considered virus as non-living.
on the east coast by racoon's. very little from dogs. and very slim chance of getting one from a bat. same on the west coast. mostly raccoon
Viruses can cause detrimental effect on their host. They can cause a disease like Polio, pox, rabies etc. or they can impairs the immunity of our body such as HIV. They can also able to cause cancers in case of HTLV.
The vaccine was first developed by Pasteur and Roux in the late 19th century. There is no known cure as such for rabies, but there have been developed some methods of which may pose as a working approach. Treatment for rabies consists of, basically, attempting to prevent rabies from developing in...
As medical discoveries go, influenza viruses were late to be isolated, mostly because of their sub-microscopic size. In 1901 the hint of the existence of these infectious agents was found when it was proved that the "germ" was not bacteria by discovering that it passed right through a filter that...
Yes actually it can.
because the viruses do not have the ability to replicate themselfs.
A prion is the smallest known thing that can cause disease.
  As far as we know, Ebola attacks mostly primates. There is some indication that it may also attack the Afrtican Fruit Bat (and by inference, other mammals as well). Some variants of Ebola, notably Ebola reston, were lethal to monkeys but apparently infected humans although -- in humans -- it...
A fever is a direct response of the immune system. The body will attempt to destroy the infectious agents by raising the core body temperature. This increase helps create an environment unsuitable to bacterial growth as well as disrupts metabolism and function of the infecting agent.
A virus doesn't destroy the host cell's DNA. The virus depends on  the cell's DNA to keep the cell functioning while the virus  reproduces. The viruses that actually kill the cell only destroy  the DNA indirectly. Once the structure of the cell is broken up in  the process of death the DNA is...
are you kidding me , yes it is a BREATHTAKING VIRAL DISEASE Medical officer of Health (H.O.H) Kangra
All viruses are obligate pathogens.
It is unknown if a hamster at pet-land had or has rabies. Rabies is a virus that can effect any mammal. the likely hood that a hamster would have rabies is not high simply because they would have to come in contact with another mammals saliva... normally through a bite wound. it is safe to say that...
Viruses can't survive too long outside the host and need it alive in order for them to survive. Living beings provide the ideal environment for viruses to thrive, such as temperature etc.
Rabies affects the nervous system.
Its the same thing with humans. Rabies manipulate the brain and u become rabid and out of control. Almost every single case of rabies has killed a human. To my knowledge no human has lived after being infected.
If you have not been vaccinated for the specific subtype of influenza that is spreading in your environment, then you are susceptible to the infection unless you have already had the same virus or a very similar one. If you do not have immunity through one of these methods, then you may catch the...
Use of antiviral creams, such as acyclovir, valtrex, and famvir can be used to fight the outbreak.
E. coli is not a disease at all, it is a species of bacteria. E. coli can be found as part of the normal microflora in the human gastrointestinal tract, as most strains are harmless. There are some strains (eg: E. coli 01H57) that are pathogenic and can cause enteritis.
Cavities are a bacteria.
No. Life is defined in science with certain criteria. Some listsare slightly different, but a universal point of definition is thatsomething living requires metabolism (the ability to create it'sown energy). Virus are non living. They do not have organelles.
A virus will replicate within a host cell.
That has not been studied scientifically, but an educated guess is that the onion will not prevent the virus from infecting you if you have been exposed to it.
The HIV is a virus and does not perform the bacterial reproduction of binary fission or conjugation in order to reproduce. The only way a virus reproduces is by infecting a host cell.
Yes they can, infact the first virus discovered was plant virus named TMV (tobacco mosaic virus). absolutely right answer.
A virus is a very small creature and can not be seen by the naked eye. They can only be seen with the aid of a microscope. Their size is so small that their size can only be measured in micro-meters. The organism which is so small and is measured in micros are known as micro organisms 2. Some...
A retrovirus transcribes RNA into DNA, whereas a regular virus transcribes DNA into RNA. (:
On your own without any medical assistence, No. Rabies takes hold of the brain and makes it go haywire. Such as fear of water and jumpiness. But with extreme medical help and if your quick to get to the doctors. They can hook you up to a mechine which turns the brain into a idle state so the rabies...
  No, but you can catch other things, so always use a condom.
A virus injects its DNA into the host cell making it producemultiple copies of that DNA and multiple copies of the proteincapsule of that virus. After a while, the host cell becomes full ofmany copies of that virus, then the host cell explodes releasingall the new viruses. If the host cell is a...
If there are cells for that virus to reproduce in and no anitbodies to fight the virus off.
  == Answer ==   lytic.
Not the human flu, but dogs are susceptible to the canine version of colds and flu (which are caused by different things) The canine flu shows symptoms very close to kennel cough but they ARE NOT the same thing. The canine flu is almost the same as horse flu, and dog flu can be described as H3N8....
Bacteria diseases are treatable; while virus diseases have never been treated, but we can make vaccines for them. A bacterium is a single-celled, often parasitic microorganism without a distinct nucleus or an organized cell structure. It has cytoplasm and a cell wall, but no true nucleus. Various...
Rabies is a zoonotic disease, meaning that it is transmitted to people through animals. Rabies can only be transmitted by contact with an infected mammal (humans included), This occurs typically through bites. Nationality does not inherently predispose someone to rabies. However, It should be noted...
Yes it is a type of bacteria
The HIV virus was not created. It is believed to be a mutated form  of a virus that exists in the animal kingdom, specifically among  species of primates.
global pandemic, quarantines, cholera, lots of death, followed by the end of civilization as we know it...
no it doesnt make you eat people but you have to because your digestive system wont work with any other food. only people
Elderly people, young children, and people with weakened immune systems.everybody is at risk...no one is not....
children are most likely to get it if you want to know what (animal) gets rabies most often, that would be a rodent of some nature - then to bigger animals. Mice, rats, squirrels, raccoons, cats, dogs etc.. It depends on what the carrier gets a hold of.
No there is no cure if some one gets it they will die in twenty four hours :(
There is no cure. There is a treatment for Ebola but it doesn't  work for everyone.
Host specificity of a virus can be attributed to a few different factors. One of these factors is a viral species ability to "hijack" a cells internal machinery and cause it to reproduce the genetic makeup and proteins which make it up. Many viruses then exit the cell (usually through destroying it)...
You can get the flu and become very week and pale skinned.
no but there has been one case in canada, a woman traveling to congo came back with the virus but it wasn't spread any further
A latent virus is a unactive virus that sits in your body that eventually becomes active with no explained reason. An example is a cold sore. You dont know its coming until its done. That is a virus in your lip.
Vaccine can prevent the flu.
Seems to me no one knows the answer to this question. Even the CDC doesn't go into detail on this question. I'm starting to smell "The Emperor wears no clothes effect." It would be easy to test. Simply give someone the rabies vaccine shots, then inject them with rabies. It will either work or not......
the answer is yes it can be crystallized and stored in a jar for many years to come
i think it's a little parasitic bacteria
YES   -   The rabies virus travels through the nervous system, eventually inflaming the brain. Early symptoms include irritability, headache, fever, and sometimes itching or pain at the site of the bite. The disease eventually progresses to paralysis, spasms of the throat muscles, convulsions,...
The incubation period of the disease is usually a few months in humans, depending on the distance the virus must travel to reach the central nervous system. Early-stage symptoms of rabies are malaise, headache and fever, progressing to acute pain, violent movements, uncontrolled excitement,...