what is "cd4 receptor Site"?
About "cd4 receptor Site"
Answers:
CD4 (cluster of differentiation 4) is a surface antigen, a small molecule that is part of certain cells in the body, which helps the cell to communicate with cells around it.
It is found on all 'T Helper' cells which are a normal and important part of the immune system. Other cells in the immune system are responsible for picking up foreign molecules in the body, such as viruses and bits of bacteria, and these are then 'presented' to T Helper cells. The CD4 receptor on the T Helper cells then recognises the molecule and activates the T Helper cell, starting an immune reaction in the body.
T Helper cells are particularly important in fighting viral infections.
HIV is a virus that infects CD4 T Helper cells, stopping it's ability to protect the body from infection. As more and more T Helper cells are destroyed by HIV, the body can no longer prevent dangerous infections, and this is called AIDS.
Other Answers:
i need to know more about the Vaccenations duirng\after pregnency for the mother and her? child?
It has to do with Aids and the structure of the virus that causes Aids. I can't explain it because I don't know enough about it. I would suggest looking for a web site on the disease.More Questions and Answers
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