In bacteriophages (viruses that infect bacteria) a viral infection begins when a virus attaches to a specific chemical receptor on a host cell. The virus then inserts its nucleic acid into the cell. This nucleic acid may end up "taking over" the host cell and reproducing the virus. Most viruses that infect eukaryotes are engulfed by an endocytotic process. The eukaryotic cell "eats" the virus. Once inside the cell, there are two possible paths: a lysogenic infection, or a lytic infection.
A virus enters a cell by first attaching to a specific structure on the cell's surface via a specific structure on the virus surface. Depending on the virus, either the entire virus enters the cell, or perhaps only the genetic material of the virus is injected into the cell. In either case however, the ultimate result of viral infection is the exposure of virus genetic material inside the entered cell. Then, the virus material essentially "takes over" the cell and nothing but viral parts are made, which assemble into many complete viruses. These viruses are mature and leave the cell either by a process called "budding" (just one or a few viruses at a time leave the cell) or by a process called lysis (the cellular membrane ruptures and releases all of the virus particles at once).
You get sick from viruses because of the immune response to the virus. When you get a cold, a virus has infected your body and is multiplying in your body by taking over the cells of your body to reproduce. In response to this your body activates the inflammatory process, which involves many processes like increased blood flow to the area of infection, extravasation of fluids(fluid from your blood leaves the blood stream to the sight of infection), white blood cells migrate to the site of infection, and fever.It basically inhibits DNA from doing necessary things for optimal cell health, but it can be many factors. It hatches onto the nucleus and resides within the cell, dividing along with it. Then it basically overruns the cells and kills them.
Most viruses reproduce by using the cell's mechanisms for replicating nucleic acids and building proteins in a rapid uncontrolled manner until the cell fills completely with new viral particles. Eventually the cell is unable to contain them anymore and explodes, ejecting all these new viruses as well as the fragments of the cell which dies. These new viruses then infect other cells, with similar results.
However the vast majority of the symptoms of viral diseases are not caused by the viruses killing cells directly. When the immune system recognizes that an infection is in progress, it begins a 2 part attack:
Other actions of the immune system (e.g. fever, production of histamine) produce many of the other symptoms that viral diseases are well known for.
The virus makes people ill by reproducing in the body system. Viruses are known to mutate and increase rapidly which may make them immune to antibiotics.
by transporting their genetic material to the host cell causing a genetis mutation
They spread and attack your immune system.
A virus damages the cell in which it reproduces to make us feel ill.
Polio
A virus will make us sick because it disrupts the function of the cells or actually kills cells. Viruses uses healthy cells in order to replicate.
This virus can get in your brain and make a person go crazy and laugh so hard water will come out of the victim's nose
It is fine to go outside with a cold or virus. However, it isn't cool to go around others because you will be contagious and they'll get sick. Viruses are spread from person to person or from touching things that the sick person had some sneezed, coughed on or touched with unwashed hands. Some illnesses are caused by bacteria. Cold air doesn't cause illness. Getting fresh air and getting away from the stifling air in a house or apartment is the best way to help you get over a cold or virus and sunshine will help you heal too. I say go out and sit in your garden or yard if it is a nice day.
Probably. Well, it's possible. If they had contagious bacteria or viruses on the food or drink, these could get into your system. Your immune system will try to fight off the potential infections, but if this fails, you could "catch" the sickness.
Yes you can.Like, you can have a virus, then get food poisoning.I am pretty sure that you can.Not all the way though.
A virus can be contagious by contact or being in the same atmosphere of a sick person.
Virus
Yes. You will get a stomach virus that will make you diharea all day or you just throw up the virus. Its kinda like the stomach flu.
about a week or even two seconds. It could be one of thoses.
The common cold is a virus. When you are exposed to the virus you get sick. If you are sick with a cold make sure to wash your hands frequently, don't cough or sneeze into your hands, and don't share drinks and food with other people.
Psychosomatic illnesses are illnesses where the persons thoughts about being sick actually make the person sick. If you truly believe that something will make you sick, it is possible that you will become ill.
it can make a person sick because they don't understand what they did wrong and always have proof before you open your mouth
Jennifer was a vampire or something!not sick of virus!
Yes, it's likely that you might get the same disease passed onto you if the disease is contagious, as the sick person's saliva contains the virus/bacteria that can also get you sick when you ingest it. But some disease cannot be spread that way, as for example if the sick person is sick with HIV, you will not get sick if you drink from the same cup, but you will get sick if the person cut himself with a razor blade, for example, and somehow his blood mixed with you. You'll get sick too as HIV is only spreadable through blood to blood transmission.
A virus will make us sick because it disrupts the function of the cells or actually kills cells. Viruses uses healthy cells in order to replicate.
yes, just the same as a gerbil can make us sick.
If a person is sick and the needle is not sterilized it will make the next person sick