How does Influenza attack the body?
How does Influenza attack the body?
Do you know of a good website with diagrams and explanations of how Influenza A actually attacks the body. 10 Points best answer!
Answers:
Hey,
Influenza is a virus. Viruses slouch around our environment all of the time just waiting for a host cell to come along. They can enter us through the nose, mouth or breaks contained by the skin (see How the Immune System Works for details). Once inside, they find a host cell to infect. For example, cold and flu viruses will attack cells that line the respiratory or digestive tracts. The human immunodeficiency virus (HIV), which cause AIDS, attacks the T-cells of the immune system.
In the lytic cycle, the virus reproduces itself using the host cell's chemical machinery. The red spiral lines in the drawing indicate the virus's genetic material. The orange portion is the outer shell that protects it.
Regardless of the type of host cell, adjectives viruses follow the same basic steps surrounded by what is known as the lytic cycle (see figure above):
A virus particle attaches to a host cell.
The tiny part releases its genetic instructions into the host cell.
The injected genetic material recruits the host cell's enzymes.
The enzymes make parts for more new virus particle.
The new particles assemble the parts into new virus.
The new particles break free from the host cell.
All viruses own some type of protein on the outside coat or envelope that "feels" or "recognizes" the proper host cell(s). This protein attaches the virus to the membrane of the host cell. Some enveloped viruses can dissolve right through the cell membrane of the host because both the virus envelope and the cell membrane are made of lipids.
Those viruses that do not enter the cell must inject their contents (genetic instructions, enzymes) into the host cell. Those viruses that dissolve into a cell simply release their contents once inside the host. In any case, the results are the same.
Website: http://health.howstuffworks.com/virus-hu…
Excellent answer, Matthew!
Viruses are amazing.
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Do you know of a good website with diagrams and explanations of how Influenza A actually attacks the body. 10 Points best answer!
Answers:
Hey,
Influenza is a virus. Viruses slouch around our environment all of the time just waiting for a host cell to come along. They can enter us through the nose, mouth or breaks contained by the skin (see How the Immune System Works for details). Once inside, they find a host cell to infect. For example, cold and flu viruses will attack cells that line the respiratory or digestive tracts. The human immunodeficiency virus (HIV), which cause AIDS, attacks the T-cells of the immune system.
In the lytic cycle, the virus reproduces itself using the host cell's chemical machinery. The red spiral lines in the drawing indicate the virus's genetic material. The orange portion is the outer shell that protects it.
Regardless of the type of host cell, adjectives viruses follow the same basic steps surrounded by what is known as the lytic cycle (see figure above):
A virus particle attaches to a host cell.
The tiny part releases its genetic instructions into the host cell.
The injected genetic material recruits the host cell's enzymes.
The enzymes make parts for more new virus particle.
The new particles assemble the parts into new virus.
The new particles break free from the host cell.
All viruses own some type of protein on the outside coat or envelope that "feels" or "recognizes" the proper host cell(s). This protein attaches the virus to the membrane of the host cell. Some enveloped viruses can dissolve right through the cell membrane of the host because both the virus envelope and the cell membrane are made of lipids.
Those viruses that do not enter the cell must inject their contents (genetic instructions, enzymes) into the host cell. Those viruses that dissolve into a cell simply release their contents once inside the host. In any case, the results are the same.
Website: http://health.howstuffworks.com/virus-hu…
Excellent answer, Matthew!
Viruses are amazing.
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