The most common role of a virus in making vaccines is injection of a live weaken form of the virus. This virus will reproduce poorly once inside the body.
When you get infected with HIV, the virus enters your blood and gets inside your cells that are floating around
A foodborne virus can only reproduce inside the body of a living host, such as a human or animal. Once ingested, the virus can multiply in the host's cells and cause illness.
The human body detects the Nipah virus through the immune system's response to the virus entering the body. Once the virus breaches the body's defenses, the immune system produces antibodies to fight the infection and trigger an inflammatory response. This process helps the body recognize and eradicate the Nipah virus.
Vaccines contain an inert or inactive version of a virus. When the body detects it, it develops anti-bodies to the inert virus in the vaccine. So when the real virus shows up, the body recognizes it, and can easily defeat it.
Viruses do not have a habitat in the traditional sense, as they are not considered living organisms. They require a host cell to replicate and survive. Once inside a host, viruses can exist in various parts of the body, depending on the type of virus and its specific target cells.
I'm not sure this is also for bacteria, but when a virus enters a host, it travels to a nearby cell and attaches to it and fuses a chemical into it containing its DNA. Once inside, the DNA duplicates over and over making copies of that virus until the cell explodes releasing the new virus' and they repeat the process. You cannot kill a virus with medicine since it is not a living thing. Bacteria on the other hand is a living thing.
HIV is a virus, and can't be removed from the body once infected.
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Cold sores are caused by the herpes virus. It never leaves your body once you get it. Periodically, usually during times of stress, the virus will appear on the surface of the body as a sore.
The specific host cell for West Nile Virus is the neuronal cell in the central nervous system. Once inside these cells, the virus can replicate and cause damage, leading to neurological symptoms in infected individuals.
A virus has either DNA or RNA inside the covering called a capsid.